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Mathematics Questions and Answers December 13, 2020

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elphia 1-43 Points] DETAILS webassign.net LAROSESTAT3 6.5.032. Webassign places. .C (a) more than $150 The website NerdWallet.com reported in 2014 that the average auto insurance increase for drivers sustaining a 15 miles per hour over the limit speeding ticket is $124.80 per year. Assume that the distribution is permy Out with mean u = $124.80
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This is Statistics. Provide solution if necessary thanks. 1. Suppose that an accounting firm does a study to determine the time needed to complete one person's tax forms. It randomly surveys 100 people. The sample mean is 23.6 hours. There is a known standard deviation of 7.0 hours. The population distribution is assumed to be normal. Construct a
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please help with this 4. You want to know if there's an association between college students' spring break destinations and what year they're in. You take a random sample of 405 college students and record the following data: Am usement Paraks Mexico Othler Fresh man 21 Sophomore Junior Senior 33 A. Set up your null and alternative hypotheses. (2
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The president of Amalgamated Retailers International, Samiha Peterson, has asked for your assistance in studying the market penetration for the company's new cell phone. You are asked to study two markets and determine if the difference in market share remains the same. Historically, in market 1 in western Poland, Amalgamated has had a 30% market

answer this questions 6. On the basis of extensive tests, the yield point of a particular type of mild steel-reinforcing bar is known to be normally distributed with o = 100. The composition of bars has been slightly modified, but the modification is not believed to have affected either the normality or the value of o. a. Assuming this to be the
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1). Why was the Cox regression used? 2) How did the authors check the assumption of proportional hazard? 3). How did the authors check the assumption of proportional hazard? Use the article below to answer the questions. Link: https://pubmed.ncbi.nlm.nih.gov/16777915/ [copy and paste is needed in order to work] Reference: Masson S, Latini R, Anand

Scenario: A medical researcher wishes to see whether there is a relationship between a person's age, cholesterol level, and systolic blood pressure. Eight people are randomly selected. The data is listed in the table. First, find the multiple regression equation. Next, determine the coefficient of determination. Then, use the regression equation

In the digital age of marketing, special care must be taken to ensure that programmatic ads appear on websites aligned with a company's strategy, culture, and ethics. For example, in 2017, Nordstrom, Amazon, and Whole Foods each faced boycotts from social media users when automated ads for these companies showed up on the Breitbart website
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Physical security of facility * Is facility under court order? Crosstabulation Is facility under court order? Yes No Physical security of facility Super maximum 5 4 Maximum/close/high 29 103 Medium 27 145 Minimum/low 18 207 c. As the number of degrees of freedom increases, if the level of significance is fixed, how does the critical value of

Quit Smoking: Previous studies suggest that use of nicotine Quit Smoking: Previous studies suggest that use of nicotine- W numbers in replacement therapies and antidepressants can help people stop the boxes. smoking. The New England Journal of Medicine published the 10 points results of a double-blind, placebo-controlled experiment to study the
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1.The time t (in minutes) that a customer spends at a check-out counter is believed to follow the exponential distribution. It was observed that 20% of the customers spend more than 3 minutes at the check-out counter.What is the probability that an incoming clerk will spend at most 2 minutes at the check-out counter? 2.The quality control head of

Two sample tests on means Recall that when comparing two means, we must first decide if the two variables are dependent (or paired) vs if they are independent 1. Using the hockey data, test if the true mean number of wins is greater than the true mean number of losses, using a significance level of 0.01. (Note that both cases just refer to the W

Hi I am reviewing my answers, please let me know if I need help or correct me. For the last two questions, I would think the number of factors is 4 because they all have 4 sections, right? and also number 1, I think I calculated it all wrong. Please help. Thank you. Life satisfaction among sport coaches.Drakou,Kambitsis,Charachousou,

See the attachment A study conducted in a certain period of time found that fewer than half of employers who hired new college graduates last academic year plan to definitely do so again. Suppose that the hiring intentions of the respondents were as follows: 37% selected Surely Hire 22% selected Probably Hire 21% selected Hire Unsure 20% selected
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Looking for some help with this ANOVA question. The data and table of Q-values are provided The table available below shows three samples obtained independently from three populations. 3. Conduct a one-way analysis of variance on the data. Use or = 0.05. b. If warranted, use the TukeyKramer procedure to determine which populations have different
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Sam is a teaching assistant that also works the evening shifts in the library, being the only one on duty at the counter. Arrivals to the counter seem to follow a Poisson process with rate of 10 per hour. Each customer is served one at a time and the service time is thought to follow an exponential distribution with a mean of 4 min. (a) What is
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I need details as it mentions please 7) Assume that the heights of men are normally distributed with a mean of 69.8 inches and a standard deviation of 2.8 inches. 64 men are randomly selected. A) Draw a sketch, indicating the middle value and inflections points. Be sure to label values appropriately. 0. 36 B) We wish to find the probability that
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Hi Good evening, i need help with the last question. Please help. Thank you. The F- table.The degrees of freedom for the numerator ( k 1) are across the columns; the degrees of freedom for the denominator ( N k ) are across the rows in the table. A separate table is included for a .05 and .01 level of significance. Increasing the levels of the

One hundred eight Americans were surveyed to determine the number of hours they spend watching television each month. It was revealed that they watched an average of 151 hours each month with a standard deviation of 32 hours. Assume that the underlying population distribution is normal. Define the random variable X in words. In other words, what
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8:59 LTE Search Q AA R 3. Suppose that you are engaged in a CEA and need to assign weights to four health states for rheumatoid arthritis. You use the standard gamble (SG) and time trade-off (TTO) approach with 100 respondents. On average, these respondents chose immediate painless death if the probability of such an event were 10 percent in
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How do you do longhand (a) Write the claim mathematically and identify H0 and Ha. (b) Find the critical value(s). (c) Use the ?2-test to find the standardized test statistic. Draw the graph showing curve Quarters are currently minted with weights normally distributed and having a standard deviation of 0.061. New equipment is being tested in an
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No explanation is needed just the answers. 1. [-/1 Points] DETAILS ASWQUANT13 1.E.001. MY NOTES ASK YOUR TEACHER Define the terms management science and operations research. Management science and operations research are [-Select- -Select- uses scientific methodology in managerial decision making and problem solving. Management science uses
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One unfortunate characteristic of the financial crisis in 2008 was the duration for those who were unemployed. A study wanted to examine the difference in average weeks people were unemployed between the recession in 2001 and the recession in 2008. Use the worksheet "unemployed" to analyze the differences in average weeks people were unemployed.

hi can someone help me answer this question. tq A soft drink indusny would like to know the association between a person's preferences of brand for a given location. A random sample of 325 people are selected, and their responses are given below: At 5% level of signicance, conduct it suitable statistical teat to test for the above problem. (15
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Da Each of the following smooth curves represents the shape of a data set In each case, decide whether application of the empirical rule to the data set is appropriate. Explain your answers. Click the icon to view the curves that represent the shape of data sets. Decide whether application of the empirical rule is appropriate for curve a Select
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A survey of 2281 adults in a certain large country aged 18 and older conducted by a reputable polling organization found that 401 have donated blood in the past two years. Complete parts(a) through(c) below. (a) Obtain a point estimate for the population proportion of adults in the country aged 18 and older who have donated blood in the past two

(1 point) 1.52 Find the area under the normal curve that lies to the left of z= 1.52. Express your answer as a decimal. Round to 4 decimal places after the decimal point. Answer:(1 point) -1.47 Find the area under the normal curve that lies to the right of z= -1.47. Express your answer as a decimal. Round to 4 decimal places after the decimal
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help please [-I1 Points] MENDSTATC4 8.E.081 . ASK YOUR TEACHER PRACTICE ANOTHER A random sampling of a company's monthly operating expenses for n = 81 months produced a sample mean of $5,265 and a standard deviation of $765. Find a 90% upper condence bound for the company's mean monthly expenses. (Round your answer to two decimal places.) $ You
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Problem 2(Calculating sample sizes) A store is interested in estimating the average amount of organic apples sold daily. Apple sales from 40 randomly selected days show a sample average of 83 pounds of apples with a sample standard deviation of 9.2 pounds. Find the sample sizes required to construct 90%, 95%, and 99% condence intervals that
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How do I solve to answer this question? I don't understand how to perform a t-test. tion to achieve dental efficacy. The authors score, as early as week 2 of treatment. This propose a strategy of adding creatine mono- differential improvement favoring crea- hydrate (creatine) to a selective serotonin tine was maintained at weeks 4 and 8. reuptake
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About what population is the study intending to make inferences? (3 points) The study is intending to make inferences about US adults. 4. Thinking about how people were recruited and data were collected in this study.... a. What is the study design? (HINT: What data is being used in the study?) (2 points) Cross-sectional survey. b. How do you know

Could someone please help me with this question Please state all definitions and theorems that you will need: Corollary 3.5.8 (Nested Intervals Theorem) Let F = { An: n E N} be a family of closed bounded intervals in R such that An +1 C An for 00 all n E N . Then n An * 0. n =1 Theorem 3.5.5 (Heine Borel) A subset S of R is compact iff S is closed
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Share with your peers the null and alternative hypotheses for a decision that is relevant to your life. This can be a personal item or something at work. Define the population parameter, the appropriate test statistic formula, and if the hypothesis test is left-tailed, right-tailed, or two-tailed. Be sure to set up your hypotheses, too. How did

Required: 1. Using regression analysis and choosing from several potential cost drivers, derive the cost drivers that are significant predictors of overall overhead costs that can be used to help allocate overhead. 2. Derive the formula for allocating overhead. 3. Compare estimated overhead to actual overhead using a scatterplot. Ask the Question:
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Isabel Briggs Myers was a pioneer in the study of personality types. The personality types are broadly defined according to four main preferences. Do married couples choose similar or different personality types in their mates? The following data give an indication. Similarities and Differences in a Random Sample of 375 Married Couples Number of

Cul de las siguientes afirmaciones acerca del Teorema del Lmite Central (TLC) es correcta? Cual de las siguientes afirmaciones acerca del Teorema del Limite Central (TLC) es correcta? O EI TLC afirma que la distribucion de muestreo de la media muestral x es aproximadamente normal para tamanos de muestra grande ( n 2 30) O El TLC afirma que la
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Question #1 In a study of 778 randomly selected medical malpractice? lawsuits, it was found that 489 of them were dropped or dismissed. Use a 0.01 significance level to test the claim that most medical malpractice lawsuits are dropped or dismissed. Which of the following is the hypothesis test to be? conducted? A. H 0 :p=0.5 H 1 :p B. H 0 :p>0.5 H
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The 95% condence interval for the mean monthly earnings for January is [$9,000; $15,000]. Are the following remarks true or false? (a) If I were to run a new simulation for monthly earnings in January, there is a 95% chance that the observed sample mean of my simulation would be between $9,000 and $10,000. (b) If I were to run one simulation of

I don't know the calculations below, and I don't know how to explain why 5. Copy and paste the descriptive statistics for the price Descriptive Statistics variable for all 75 observations in the box to the right. Make sure the output contains the N, mean, median, Rent N 75 standard deviation, min/max, and the quartiles of the Mean 1119.6 variable
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Con X w lear X 2021100 i (2 unread > darwinian | C Short Ess | |Course H | ly blackboa | |Content | Biostatist | SPSS - M| [ Diagram( G QUESTION + X C A https://bb-csuohio.blackboard.com/ultra/courses/_140669_1/cl/outline?legacyUrl=~2Fwebapps~2Fblackboard-2Fconten... G * Question Completion Status: X QUESTION 9 3 points Save Answer 18 The data
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Please include critical value and computed test result thank you Weights uf Vacuum Cleaners Upright vacuum cleaners have either a hard body type or a soft body type. Shown are the weights in pounds of a sample of each type. At :1 = 0.05, can it be concluded that the means of the weights are different? Assume the variables are normally distributed
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Suppose a random sample of size 36 is selected from a population with mean , the value of which is unknown. The sample had a mean of 10.5 and a standard deviation of 12. You are given the following hypotheses: Ho: = 8 H A : > 8 If testing at of 5%, which of the following is the correct decision and conclusion? As Z calculated of 1.25 is less than

6) [2 pts] The tread life of a brand of tire is normally distributed with a mean of 60,000 miles and a standard deviation of 1300 miles. Find the probability that a randomly selected tire of this brand will have a tread life less than 61,000 miles. Show work: Shade and label the normal curve with the mean and the interval of x you are finding the
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4. A sample of 25 ignition condensers for a Willys CJ-2A are chosen for life testing. The time to failure of the component is exponentially distributed. The test is terminated after 850 hours, with six failures being observed at times 600,650,680, 710, 740, and 755 hours. Failed items are not replaoed. 4.1. Estimate the mean life of the
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A sales and marketing management magazine conducted a survey on salespeople cheating on their expense reports and other unethical conduct. In the survey on 200 managers, 58% of the managers have caught salespeople cheating on an expense report, 50% have caught salespeople working a second job on company time, 22% have caught salespeople listing a

Two chips are drawn at random and without replacement from a bag containing 18 blue chips and 9 red chips. What is the probability that at least one of the chips is blue? Round your answer to three decimal places. Two chips are drawn at random and without replacement from a bag containing 13 blue chips and 9 red chips. What is the probability that
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The circumference of male soldiers' heads is normally distributed with a mean of 22.8 inches and a standard deviation of 1.1 inches, This information is used to make military helmets. What percent of soldiers' head sizes are between 21 and 25 inches? Provide your answer as a decimal value to 4 decimal places with a leading 0 ; example 0.2542
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Hazardous waste: Following is a list of the number of hazardous waste sites in a sample of states of the United States in a recent year. The list has been sorted into numerical order. 9 11 12 12 12 13 14 14 15 15 16 19 20 21 25 26 29 30 32 32 32 38 40 48 49 49 52 67 86 97 Source: U.S. Environmental Protection Agency Send data to Excel Part: 0 / 4

Hello, i need help with the attached excel sheet and questions. thank you. Ch. 1 Hand in Homework Use the data in the Excel spread sheet named Chapter 1 Data. This contains carbon emissions per capital for 50 selected countries (taken from the COTAP web site). a. Why would we choose to measure carbon emissions per person instead of just the total
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PLEASE REFER TO THE ATTACHED PHOTO : PRACTICAL RESEARCH 2 (QUANTITATIVE RESEARCH) MODULE 1: NATURE OF INQUIRY AND RESEARCH SUMMATIVE TEST NO. 1 GENERAL INSTRUCTION: READ EACH ITEM CAREFULLY AND FOLLOW DIRECTIONS Test I. Encircle the letter of the best answer. 1 Which of the following statements is NOT a characteristic of quantitative research? A.
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I don't understand why the answer is x 1/2 and not x 1/16 . I thought if you FOIL and multiple x 1/4 and x 1/4 you'd get x 1/16 . Question 2 0 / 0 pts Multiply ( ac 7 + 1) (207 - 7) O x2 - 7 You Answered O x16 - 6x4 -7 Ox2 - 6x4 +7 Correct Answer O x2 - 6x4 -7 FOIL: 2 2 - 72 4 + 1x4 - 7 c 2 - 6x 4 -7
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6 Question 6 The average THC content of marijuana sold on the street is 10%. Suppose the THC content is normally distributed with standard deviation of 1%. Let X be the THC content for a randomly selected bag of marijuana that is sold on the street. Round all answers to 4 decimal places where possible, a. What is the distribution of X? X ~ N( b.
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solve this by graphing and finding which is larger please. 10. Solving Equations and inequalities Graphically:- Graphs of the function of and , are given, ( a ) Which is larger , f ( 6 ) or g(6 ) ? ( b ) Which is larger , f( 3) or g ( 3) ? ( c ) Find the values of X for which f(x ) = g ( x ) ( D) find the values of x for which f(x) , ( x )
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HW 7: Problem 7 Previous Problem Problem List Next Problem (1 point) Use the given data to find the 95% confidence interval estimate of the population mean M. Assume that the population has a normal distribution. IQ scores of professional athletes: Sample size n = 26 Mean x = 103 Standard deviation s = 12 Note: Round your answer to 2 decimal
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9.2 Assignment 23. Rg. 561 Opening a restaurant You are thinking about opening a restaurant and are searching for a good location From research you have done, you know that the mean income of those living near the restaurant must be over $85,000 to support the type of upscale restaurant you wish to open You decide to take a simple random sample of
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stuck with homework problem Problem 1: Please use composition methods introduced in class to answer the following subproblems. Assume we are only allowed to generate u N Uni f (0, 1) (use runif() only). Write R code to generate 10,000 random samples from tdistribution with 10 degrees of freedom and plot a histogram. Hint 1: Note if U ~ Unif[0, 1]
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question 24 Suppose IQ scores were obtained for 20 randomly selected sets of couples. The 20 pairs of measurements yield x = 101.25, y = 100.95, r = 0.883, P-value = 0.000, and y = 4.47 + 0.95x, where x represents the IQ score of the wife. Find the best predicted value of y given that the wife has an IQ of 90? Use a significance level of 0.05.
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Content X w learn-us-east-1-p x 20211002_PHC x (4 unread) - enoc > > darwinian paradic x C Short Essay Ques X *Homework Help - X + X C https://bb-csuohio.blackboard.com/ultra/courses/_140669_1/cl/outline?legacyUrl=~2Fwebapps~2Fblackboard~2Fconten... G * Question Completion Status: X QUESTION 6 3 points Save Answer Within the last few years there
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Identify appropriate articles in recently published scientific and academic journals that used and presented the different statistical analyses. Identify articles published from year 2017 to present. Do not submit biology, biochemistry, or papers where they use a lot of math or had pretty graph of enzyme activity. There must be a statistical

Could you please show work so I can study for my exam: 6. Two samples from two different and independent populations produced s. = 72, n1 = 13, $3 = 20, n2 = 16. Test of = 0? versus of # o? at the .02 level of significance. 7. If x = 5 of n = 20 patients suffered serious side effects from a new medication, test the null hypothesis 0 = .5 versus 0
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Question 1: Determine whether the samples are independent or dependent. To test the effectiveness of a drug, cholesterol levels are measured in 200 men and 200 women after the treatment. Choose the correct answer below. 0 A. The samples are independent because there is a natural pairing between the two samples. 0 B. The samples are independent
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To determine if the relationship exists between blood uric acid (BUA) level and sex, the researcher screened 465 males and 656 females and classified them as to whether they had normal or elevated BUA levels. The study disclosed that 143 of the males and 133 of the females had elevated BUA. Do these findings suggest that there is a difference in

Help ! With explanation if possible. This stuff turns my brain into knots. In addition to therapy, anti-depressant drugs are used in the treatment of depression. The data Type number below are from a study comparing two anti-depressant drugs. A baseline measurement for ab Part 1: 3 1 symptomatic behavior for depression is taken. After treatment
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An assembling organization utilizes two gadgets to review yield for quality control purposes. The main gadget can precisely recognize 99.3% of the blemished things it gets, while the second can do as such in 99.7% of the cases. Accept that four blemished things are delivered and conveyed for investigation. Allow X and Y to mean the quantity of

Which of the following statements is true? For the uniform distribution, the parameters o and / represent the mean and standard deviation, respectively. O In the notation X ~ N (M, 6'), the symbols / and o are called "variables". O The normal distribution has no upper or lower bounds. It goes to infinity in both directions. O The height of a PDF
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Jim is a 60-year-old Anglo male in reasonably good health. He wants to take out a $50,000 term (i.e., straight death benefit) life insurance policy until he is 65. The policy will expire on his 65th birthday. The probability of death in a given year is provided. x=age 60 61 62 63 64 P(death at this age) 0.010270 .014620 .016630 .019930 .02320 Jim

The following table lists the weight of individuals before and after taking a diet prescribed by a weightloss companyr for a monr: Weight-loss Data Individual Weight Before Weight After Weight Loss (lb) (lb) (lb) A 130. 3 12 1 9.3 B 127.2 116.4 10.8 C 128.5 1 18.6 9.9 D 196.0 179.9 15.1 E 138.2 130.7Ir 7.5 F 143.3 126.8 15.5 You may nd this
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Q3} ............................................................................................... 12 marks Suppose that a committee is studying whether or not there is a waste of time in our judicial system. It is interested in the mean amount of time individuals waste at the courthouse waiting to be called for jury duty. The committee randomly
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You are interviewing for a role with Canada's top analytics team. As part of the interview, you have a take-home assignment: they have provided a dataset, a few questions, and asked you to showcase your analytics prowess. Using the file and tab named "Question_1" on it, answer the questions. a.Run a correlation analysis on the dataset. Is there

I need t stat p and the confidence itervel 9.2 .1 2'T Questior Listed in the data table are IQ scores for a random sample of subjects with medium lead levels in their blood. Also listed are statistics from a study done for a random sample of subjects with high lead levels. Assume that the two samples are independent simple random samples selected
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Statistics The question is very clearly. What more clear do you want. A study was conducted to estimate the average size of homes (in square feet) in a commu- nity. The community was divided up into two sections. There are 700 homes in the commu- nity, with 60% of the homes in Section I and 40% in Section II. A list of the 700 homes was
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3) What type of relationship is depicted in the following scatter diagram? 4)A survey of 400 college seniors resulted in the following crosstabulation regarding their undergraduate major and whether or not they plan to go to graduate school. Refer to Exhibit 2-4. Of those students who are majoring in Business, what percentage plans to go to

South Houston General Hospital has 500 beds and 55 bassinets. As the HIM manager, you report monthly statistical data of hospital operations to administration and departmental managers. Use the statistics reported in the table below to calculate the following statistics for February (non-leap year). South Houston General Hospital - Inpatient

about parameter and statistics What's More... Directions: Determine whether the numerical value is a parameter or a statistic. Explain your answer. 1. Sixty-two of the 97 passengers aboard the Agila airship survived its explosion. 2. In a survey of 300 computer users, 8% said their computers had malfunctions that needed to be repaired by service
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Given the following pairs of z -values, find the area under the normal curve between each pair of z -values. Refer to the table inAppendix B.1. (Round the final answers to 4 decimal places.) a. z = -1.2 and z = 0.5 _____? b. z = -2.59 and z = -2 _____? c. z = 1.6 and z = 2.7 _____? d. z = -2.24 and z = 1.14 _____? Areas under the Normal Curve
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how to solve? Problem 6: Now, find the following probabilities. Remember to ask yourself the questions, . Is this a simple or compound probability? . How many cards are being drawn? . Which conjunction is used and should we add or multiply? . If it is a compound probability, are the events dependent, independent, mutually exclusive, or not
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(b) What is the fuzzy membership of John being tall and smart? Note that fuzzy AND operation is the minimum selection. (c) If we interpret "0.9" as "very" and "a bit lower than 0.9" as "quite", so the semantics for the above probability combination yields \"If Bob is very smart and Bob is very tall, then Bob is a quite tall, smart person." What is
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It is estimated that approximately 8.12% Americans are afflicted with diabetes. Suppose that a certain diagnostic evaluation for diabetes will correctly diagnose 94% of all adults over 4040 with diabetes as having the disease and incorrectly diagnoses 1.5% of all adults over 4040 without diabetes as having the disease. a) Find the probability that

minutes to complete this quiz. It is op Question 11 The chi-square is a C Bivariate hypothesis test Univariate hypothesis test CMultinomial hypothesis test C Binomial hypothesis test PreviousWhat are the two main way llecting statistical dat al Quantitative or categorical b. Classification into Univariate or Bivariate c. Sample or Census Od.
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Q1. A school conducted special classes to help students with poor verbal english. Each student was required to give a test twice, once before starting the classes (Test 1) and once again after completing 4 weeks in the class (Test 2). Let Y1 and Y2 be the scores in Test 1 and Test 2 respectively. Let Y = Y2 - Y1. Hence, if the population mean for

Multiple myeloma is a form of cancer. For decades, there was no known treatment. Rather recently, though, doctors surmised that the drug Thalidomide, which was given to pregnant women in the 1950s but was subsequently found to cause birth defects, may extend the lives of those afflicted with multiple myeloma. In an extensive clinical trial, 23
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Please count it manually without using excel so I can learn how to calculate it Please count it manually without using excel so I can learn how to calculate it 1. A seller analyzes the relationship between the total sales and product name. He wants to know the relation between the products and the amount sold. The Product Name The Product Name in
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he average life of a battery is supposed to be 250 hours of continuous operation. A random sample of 25 batteries is subject to discharge and the lifetime is recorded. The data is as follows (in hours): 214, 289, 263, 291, 240, 207, 277, 252, 285, 287, 250, 297, 268, 286, 211, 232, 282, 216, 223, 234, 219, 280, 239, 249, 230 Using the sign test to

Describing the Data a.Provide descriptive statistics for the weight gain observed in this sample. b.Provide descriptive statistics (n, mean, standard deviation, median, first and third quartiles, and minimum and maximum) for the weight gain observed in the sample of women who drank only bottled water versus those who drank only tap water. c.Use a
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Answer all please, thank you! The American Library Association claims that at most 67% of library patrons actually borrow books. The library director in Owenboro, KY, feels the proportion is higher in her library. A survey of 100 library patrons there showed that 82 actually borrowed books. Is there sufficient evidence, at the 1% level of
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Name PICK A NUMBER Follow the instructions and then answer the questions. Place the circles numbered 1-10 from the previous page in a bag. Draw one circle out of the bag. Place the number drawn back in the bag before each drawing. 1. The probability that a circle drawn from the bag will have the number 4 on it is represented by the proper
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Helpful feedback always! An apartment complex has a variety of apartment sizes from studio (0 bedrooms) through 4 bedrooms. Number of Bedrooms (x) 0 1 2 3 4 Relative Frequency P(x) ??? 0.392 0.327 0.183 0.044 For each of the following questions answer as a percent to 1 decimal. A) Find the Probability of selecting a studio apartment. B) Find the
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3.X = the number of cars that a dealer sells in a day is a random variable with probability distribution shown in the accompanying table: x 0 1 2 3 4 5 p(x) 0.10 0.15 0.20 0.30 0.20 0.05 a. According to the above distribution, there is a 20% chance that the dealer will sell 2 cars in a day. (p(2) = 0.20). This probability is based on past data.

John Foster, president of Public Research Inc., has asked for your assistance in a study of the occurrence of crimes in different states before and after a large federal government expenditure to reduce crime. As part of this study, he wants to know if the crime rate after the expenditure can be predicted using the crime rate before the
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1. Suppose that we know that the height of a woman chosen at random is a random variable coming 'om a normal distribution with mean 66. variance 9. (Height is measured in inches.) Find {a} the probability that the height of a woman chosen at random will be between 64 and 69, (b) the probability that the average of the heights of 1D women chosen at
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Solve this question 4 Question 4 (10 points) Books are identified by an International Standard Book Number (ISBN-10), a 10 digit code. The first 9 digits identify the language, the publisher, and the book. The tenth digit is a check-sum digit, which is determined by the following modulo 11 congruence 9 C 10 = kxk mod 11 k=1 Here xx denotes the k
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Multiple Choice Select the best answer for Exercises 20-32, 29. Experiments on learning in animals sometimes measure how long it takes mice to find their way through a maze. The mean time is 18 seconds for one particular maze. A researcher thinks that a loud noise will cause the mice to complete the maze faster. She measures how long each of 10
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Question b and c I am struggling on 2. As the owner of a hardware store, you are concerned about the supply of white paint through the weekend. You have 13 gallons of paint left in stock. Assume that there is a 20% chance that any customer buying paint will purchase a gallon of white paint. With 25 customers purchasing paint over the weekend: a)
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Please help me with this HW question. It has three parts (a, b, c) but it's one question. Thanks! Prove or give a counterexample to the following statements. a) Let M(t) be the moment generating function of a random variable X. Then, M(2) 0, it is always true that E(X) P(X Z a) S a
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StatCrunch StatCrunch Assignment 3 In this assignment, you will use the StatCrunch U data set that you developed in Module 2 as part of the first StatCrunch assignment. As you did in StatCrunch Assignment 1B, look at the items in the StatCrunch U survey and develop a question regarding population proportions that can be answered using the survey

T-test Practical Report: Dependent and independent t-test By now you should be able to: 1. differentiate dependent and independent t-test, 2. explain the assumptions for the t-test, 3. conduct and interpret the output (for t-test using SPSS). Task; Using your class data, compare the pulse rate between, i) male and female students after 10 minutes
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A shopping centre wants to examine the amount of space required for parking. Studies indicated that 62% of staff and shoppers use public transportation. A survey of 1,002 was taken, and 599 responded that they used public transportation. a. State the null hypothesis and the alternate hypothesis. Round the final answers to 2 decimal places. H 0 : p

STATISTICS EXPERTS Justify your responses by offering clear and well-founded replies to the scenario below. Questions: Questions: Where is a product article's state contained? Caring is a worth and a mentality that shows itself as a solid demonstration. In a Scandinavian setting, with a beginning during the 1980s, Eriksson [4] proposed that, in

Q2. The three major theories that explains the relationship between arousal and performance are Drive Theory, Inverted-U Theory, and Individualised Zones of Optimal Functioning (IZOF). a) Compare the key similarities and differences between these three theories. Discuss the significance of each theory. b) As a sport psychologist, choose one theory
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QUESTION 5 0. When do you stop collecting data in a qualitative research study? When you have sampled as many people as feasible from your study population When you have achieved saturation (i.e., no new themes are emerging) When you have sampled at least 20 participants and as many people as your study funds allow When you have sufficient
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