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Mathematics Questions and Answers May 24, 2023

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The records of a hospital show that 62 men in a sample of 1000 men versus 14 women in a sample of 1000 women were admitted because of heart disease. What is the upper bound of the 96% condence interval of the difference between the proportions of men and women who were admitted to the hospital because of heart disease
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A group of 5 boys took their girlfriends with them to a seaside picnic right after their quiz in QUAMETH. a.They arrived at the resort late in the afternoon and decided to rent a large cottage having three rooms with the following maximum allowable number of occupants per room: 5 persons in the Royal Suite; 4 persons in the De Luxe Suite; and 3

Lab 2 Electroencephalography (EEG) PSYC 437/537 B-Alert X-10 Benchmark tasks Data Report Student's Name _____DeBen Barnnie______________________________ Date ______1/28/2024___________ I. Data and Calculations SUBJECT'S PROFILE Name ____Austin_________________________ Age______________ Sex: __x_Male ___Female A. CLASSIFICATION REPORT TASK SLEEP

STATS 13-2 Question 20. Section 11.4 Hw Score: 61.43%, 15.36 of 25 @3 Exercise 8 points Part 2 of 2 9 Points: 0.5 of 1 Homework: Chapter Eleven Homework . _ A random sample of 16 purchases showed the amounts in the table (in $). The mean is 60.09 20.35 41.68 43.025 Duestlon \"St '6 $45.90 and the standard deviation is $22.42. 23.77 65.68 83.07
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# Raw data Using R ## Description Compiled by J. Monroe Gamble for a Summer Research Opportunities Program (SROP) at Michigan State University, Summer 2014. Monroe obtained data from the U.S. Census Bureau, the FBI Uniform Crime Reports, and the Death Penalty Information Center. https://www.dropbox.com/s/q99hntyrisud6n6/murders.csv?dl=0 ## Format
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The following statistical study gives a sample statistic and a margin of error. Find the confidence interval and answer any additional questions. A national survey of 1523 respondents reached on land lines and cell phones found that the percentage of adults who favor legalized abortion has dropped from 54% a year ago to 43%. The study claimed that
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Calculate the pervalue for each of the given hypothesis test scenarios below, Round p-values to four decimal places. . Find the p-value for a left-tailed test of hypothesis for a proportion when the test statistic has been calculated as -2.52. p-value . Find the p value for a right-tailed test of hypothesis for a mean when the test statistic has
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X MATH&146 OL - X MATH&146 OL - X WAMAP Il It StatCrunch C wamap.org/assess2/?cid=33292&aid=1837605#/skip/6 34 62 39 74 26 65 65 46 21 64 32 36 49 52 28 40 41 61 38 60 35 55 42 65 49 41 51 66 48 63 38 70 46 65 43 66 49 48 34 60 58 39 63 20 63 65 65MATH&146 CL - X MATH&146 CL - X WAMAP * Ill StatCrunch C
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You mary need to use the appropriate appendix table or technology to answer this question. In order to determine how many hours per week freshmen college students watch television, a random sample of 210 students was pelected. It was determined that the students in the sample spent on average of 13 hours with a standard deviation of 3.7 hours
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Stats overview 1) (4 pts) The average price of new homes from a sample of houses is $180,000 with a standard deviation of $15,000. The data set has a bell-shaped distribution. Using the Empirical Rule, in what range do the middle 95% of house prices fall? 2) (6 pts) The following data set represents the ages of 15 college professors: 46 51 60 58
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Simulated Research Study #3 Researchers and clinicians are concerned that the current treatments being offered for alcohol dependence are not resulting in a high enough percentage of successful outcomes. A complicating factor is that many clients experience depression during treatment for alcohol dependence. Mindfulness Therapy has demonstrated

Set up the hypotheses you would use in the following situation: The mortality rate from a particular form of cancer is 23% during the first year. When treated with an experimental drug, only 15 out of 75 patients die during the initial year. Is this enough evidence to state that the new medication reduces the mortality rate using a 0.05

Question 8 0/1 pt 9 3 99 0 Details Find the area under the standard normal curve between z - -1.37 and z = -0.16. Round the solution to four decimal places, if necessary. Area = Question Help: Video 1 DVideo 2 .Question 9 0/1 pt 9 3 99 0 Details Find the area under the standard normal curve within two standard deviations of the mean. Round the
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(2 points) A sample of 8 measurements, randomly selected from a normally distributed population, resulted in a sample mean, I = 7.9 and sample standard deviation s = 1.25. Using o = 0.05, test the null hypothesis that the mean of the population is 8.5 against the alternative hypothesis that the mean of the population, u >: 8.5 by giving the
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Consider the hypothesis pair Ho : Yk = Nk, k = 1, . ..,n versus H1 : Yk = Nk + OSk, k = 1, ...,n where N ~ N(0, E), s is known, and O is a random variable indepen dent of N. (a) Find the a-level Neyman-Pearson detector and ROCs assuming that O is a discrete random variable taking the values +1 and -1 with equal probabilities (i.e., P(0 = +1) = P(0
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A company decides to offer a monetary incentive for employees who log a specified number of hours spent exercising in an attempt to improve employee health. The average health score (higher = better) of the 45 employees who logged enough hours was 89. The mean health score for all employees was 85, with a standard deviation of 6.1. Is this a

OSHA mandates certain regulations that have to be adopted by corporations. prior to the implementation of the OSHA prgram, a company found that for a sample of 40 randomly selected months, the mean employee time lost due to job related accidents was 45 hours. after implementation of the OSHA program, for a random sample of 45 months, the mean

Use r-studio please In clinical experiments involving distinct groups of independent samples, it is important that the groups be similar in the important ways that affect the experiment. In an experiment designed to assess the effectiveness of paroxetine for treating bipolar depression, subjects were measured using the Hamilton depression scale
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A company employs 400 salespeople. Of these, 83 received a bonus last year, 100 attended a special sales training program at the beginning of last year, and 42 both attended the special sales training program and received a bonus. (Note: the bonus was based totally on sales performance.) a)What proportion of the 400 salespeople received a bonus

The table to the right shows the medal count for three countries following an international athletic event. Medal Complete parts a. through c. below. Country Gold Silver Bronze a. Using a = 0.01. perform a chi-square test to determine if the type of medal and the country that earned it are independent of one another. Identify the null and
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All answers were generated using 1,000 trials and native Excel functionality.) A project has four activities (A, B, C, and D) that must be performed sequentially. The probability distributions for the time required to complete each of the activities are as follows: Activity Activity Time(weeks) Probability A 5 0.25 6 0.35 7 0.25 8 0.15 B 3 0.20 5

14. A normal distribution has a mean of m 5 60 and a standard deviation of s 5 16. For each of the following scores, indicate whether the body is to the right or left of the score and find the proportion of the distribution located in the body. a. X = 64 b. X = 80 c. X = 52 d. X = 28 18. The distribution of scores on the SAT is approximately

SCM 200 Project. Relating Statistics to Business This semester we have learned a variety of statistical techniques. Statistics is used in the business world in many ways. The following are some ways that statistics are used in the business world. 1. Understanding consumer behavior with statistics 2. Identifying patterns and trends in markets using

i am confused on this question please help Q4(18pts). (Apply R to this question, R markdown format is requested) One population follows exponential with parameter fl = 10. Hence the expected value and variance are : 1 u =1M = 0.1, 02 = = 0.01. Draw k random samples (sample size is n) from this population, calculate the sample means, and plot the
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Describe the association shown in the scatterplot. There is a Select... Select... Select... association between the number of pass attempts and the avergae number of passing yards per attempt for each game in Payton Manning's career.Is Lionel Messi impossible? That's the conclusion of Benjamin Morris in an article posted on fivethirtyeight.com. In
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need help with a through d please Determine (a) the y' test statistic, (b) the degrees of freedom, (c) the critical value using a = 0.05, and (d) test the hypothesis at the a = 0.05 level of significance. Outcome Observed Expected 40 Ho: PA = PB = PC = PD = H1: At least one of the proportions is different from the others. (a) The test statistic is
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For a data set of the pulse rates for a sample of adult females, the lowest pulse rate is 31 beats per minute, the mean of the listed pulse rates is x=75.0 beats per minute, and their standard deviation is s=25.6 beats per minute. a. What is the difference between the pulse rate of 31 beats per minute and the mean pulse rate of the females? b. How

4 #3 1116 We want to conduct a hypothesis test of the claim that for middle-aged adults the population mean of their cholesterol levels is more than 197.1 c. We mg 1112 choose a random sample of such levels. The sample has a mean of 196.1 ' and a standard deviation of18.5 dL For each of the following sampling scenarios, choose an appropriate test
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Please teach me how to solve this Rates of return (annualized) in two investment portfolios are compared over the last 12 quarters. They are considered similar in safety, but portfolio B is advertised as being "less volatile." (a) At a = .025, does the sample show that portfolio A has significantly greater variance in rates of return than
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For the statement below, write the claim as a mathematical statement. State the null and alternative hypotheses and identify which represents the claim. A laptop manufacturer claims that the mean life of the battery for a certain model of laptop is more than 8 hours. Write the claim as a mathematical statement. O A. H= 8 OB. H28 OC. H 8 Choose the
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Can you answer the question and fill in the blank, Please? without explain. Thank you so much! Q1: Question 3 Frequency Suppose that you are given a dataset: 4, 30, 3, 4, 50. Compute the sample mean, sample variance, sample median and MAD (median of absolute deviations) for this dataset. Your answer must be entered numerically and be rounded to
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Please help me to do Q5 and Q6 with steps Q5. (15 marks) Consider a bivariate p.d.f. for random variables X and Y: f (x, y) = 1/8, - 2
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Standards Practice 7 .EE.B.4.a 1. Select all equations that are equivalent to the given equation. 5. Nicole works in a sporting goods store 9. Select all the equations that are and earns $324 a week and 5% of her 13. The sides of a square sandbox are 3, ft 5 (20 x - 35 ) = 9 sales. One week Nicole earned $432. equivalent to the given equation.
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I have completed the first part of the problem, but I am having a hard time with the second part. Can you help me start it? The National Study of the Changing Work Force has just completed an extensive survey of 3000 wage and salaried workers on issues ranging from relationships with their bosses to household chores. The data were gathered through
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ITM-618 Clustering, Similarity, and confusion matrix /Mandatory: You can do the calculation on paper, but please attach the calculations for all three questions along with your submission, without the calculation, the assignment will not be graded!' Please answer the following questions: Q1. (Item similarity calculation) 4 Points The following
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Suppose a certain industrial operation requires the use of m machines of a certain type. Suppose each machine has some probability of requiring maintenance at the end of the week, independently of how old the machine is. However, the chance of a machine requiring maintenance increases with the amount of work it does during the week, and the week's

tion of the regression line. Examine the scatterplot and identify a characteristic of the data that is ignored by the regression line. y 11.74 13.55 18.46 18.04 9.64 17.34 7.26 16.35 4.61 18.61 15.10 y = ]+x (Round to two decimal places as needed.) Create a scatterplot of the data. Choose the correct graph below. O A. O B. O C. O D. 20 154 10 15
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A factory produces three types of products: A, B, and C. 60% of the products are type A, 30% are type B, and 10% are type C. The quality control fo these products is as follows: . For type A products, the probability of being defective is 5%. . For type B products, the probability of being defective is 3%. . For type C products, the probability of
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A research report shows that there is a trend that more people prefer to live in 4-room or bigger HDB flats. To investigate whether this finding is true, you have collected the quarterly number of re-sale flat applications from Quarter 1 of 2007 to the recent Quarter 2 of 2019. The data is given in the Excel data file "BUS105_GBA_resale". Please

A certain medical school accepts only 8% of applicants. A prep program claims that their students are admitted to this medical school at a higher rate. To test their claim at the 10% significance level, we select at random 144 students from the prep program (who all apply to this medical school), and we compute 13, the proportion of the sample who
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Confidence in banks: A poll conducted asked a random sample of 1342 adults in the United States how much confidence they had in banks and other financial institutions. A total of 143 adults said that they had a great deal of confidence. An economist claims that less than 14% of U.S. adults have a great deal of confidence in banks. Can you conclude
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please assist with question 2 eloria Tanner - Outlook X APUS CLE : MATH120 1006 Sum 2 x A Quiz 3 Week 6 (ADA) - MATH120 x C Home | Chegg.com * + C T webassign.net/web/Student/Assignment-Responses/last?dep=24299757 9.09/9.09 Points] DETAILS PREVIOUS ANSWERS BBBASICSTAT8ACC 7.1.006. What percentage of the area under the normal curve lies as given
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Question 8, 5.1.20 Part 1 of 4 HW Score: 50%, 9 of 18 points x Points: 0 of 4 Save The accompanying table describes results from groups of 8 births from 8 different sets of parents. The random variable x represents the number of girls among 8 children. Complete parts (a) through (d) below. Click the icon to view the table. a. Find the probability
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Question The weights of bags of raisins are normally distributed with a mean of175gramsand a standard deviation of11grams. Bags in the upper4.5%are too heavy and must be repackaged. Also, bags in the lower5%do not meet the minimum weight requirement and must be repackaged. What are the ranges of weights forraisinbags that need to be repackaged?

Using RStudio to solve it. For 4A the link is https://people.math.carleton.ca/~davecampbell/datasets/2020/08/10/wild-life-data-balck-bear-hunting-activity-and-harvests-data-catalogue-from-goverrnment-of-ontario/ 4. A (1 point) Obtain the Black bear hunting activity and harvests dates from Open Ontario. See also
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R Square X2 Standard Error X3 Observations 10 ANOVA df SS MS F Significance F Regression 0.116552 0.116552 18.22733 0.002727 Residual 8 0.051155 0.006394 Total 9 0.167706 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Intercept 0.028324 0.032635 0.867909 0.410722 -0.04693 0.10358 X Variable 1 0.8686 0.20345 X4 0.002727 X5 1.337757
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Two males and female college students differ when it comes to the main number of credit hours they currently taking? 4. Do males and female college students differ when it comes the mean number of credit hours they are currently taking? Use a 0.05 significance level to perform this test. (Hint: Summarize the number of credit hours for males and
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1. TB MC Qu. 5-69 Which statement is most consistent with Which statement is most consistent with the contingency table shown here? Survey question: Do you plan on retiring or keep working when you turn 65? Employee Retire (R) Work (W) Total Management (M) 13 18 3 1 Line worker (L) 39 54 93 Total 52 72 12 4 Multiple Choice 0 The decision to retire
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Please answer full question! QUESTION 4 3 points Save Answer Donald and Joe are two candidates to become president of some country. A political analyst supposes that the speaking time in minutes of (Donald, Joe) in a forthcoming television debate can be modelled with the following pair of random variables: (X, Y) ~ N(Ux = 70, Hy = 50, ox = 10, oy
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1. A machine in a factory must be repaired if it produces more than 10% defectives among the large lot of items that it produces in a day. A random sample of 100 items from the day's production contains 15 defectives, and the supervisor says that the machine must be repaired. a) Does the sample evidence support his decision? Use a test with level

3. Consider that :7 subjects give data, (y1,x11,x12), . . ., (yn,x,,1,x,,2), which are statistically independent and satisfy the model (1) 5(3/1' | x11" x20 = 50 +1(x1i (11) 4192052: a2) ' i: 1,...,n 5i =yiE(yi I 1:1,, 9521'); 5= 1,...,n where 361 and x2 are non-random; GR is a fixed known real number, k = 1,2; 555 are normally distributed random
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Are these answers private where only I can see them? Below is my questions. A major orange juice producer buys their supply of oranges from a large orange grove in Southern Florida.The contract with the supplier (i.e., the orange grove) is signed under the assumption that the amount of juice extracted from a typical orange from the supplier is

QUESTION 6 You heard on the news that researchers analyzed insurance data and foundthat people who own more cars tend to live longer than people who own fewer cars.The researchers found a substantial positive correlation between live expectancy and number of cars owned.From this news, you decide: Just because they are correlated does not mean

ComputeP(x)using the binomial probability formula. Then determine whether the normal distribution can be used to estimate this probability. Ifso,approximateP(x)using the normal distribution and compare the result with the exact probability. N=79, p=0.72, x=62 a). For N=79, p=0.72, x=62findP(x)using the binomial probability

Caleb summarized the data from his sample using _____ statistics. He then used his sample data to generalize the results to the population using _____ statistics

Q17: The statistical decision is to fail to reject the null, and H, is really false (ie a Type II error) The following 14 questions (Q18 to (31) are based on the following example: A researcher wants to determine whether high school students who attend an SAT preparation course score significantly different on the SAT than students who do not
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1. A financial planner has three portfolios: A, B, and C. Because investors have different tolerances for risks, 20% of people are likely to invest in portfolio A, 30% are likely to invest in B, and 50% are likely to inves in C. Each portfolio has both stocks and bonds, and investors are equally likely to choose either. This is a tree diagram that
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Need help with this question. Thanks! For the data in problem 7, the target copper concentration ppm is 9.0. (a) Estimate the process standard deviation from the control charts in problem 7. (b) Please make a tabular CUSUM chart for this process, using standardized values h = 5 and k = . (c) Interpret the CUSUM chart. Cu Subgroup Cu Subgroup Cu Cu
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Please help: A company prices its tornado insurance using the following assumptions: . In any calendar year, there can be at most one tornado. . In any calendar year, the probability of a tornado is 0.14. . The number of tornadoes in any calendar year is independent of the number of tornados in any other calendar year. Using the company's
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Can you show how to build this tree? ZZT Electronics designs, builds and tests prototype power management systems for electric vehicles. ZZT have been approached by a major automobile manufacturer to produce prototypes of two power management modules: module A and module B. Module A is a battery management system and module B is a regenerative

3. The following table is a summary of one of the key questions in the employee satisfaction survey for ABC Limited.If an employee (a male) is randomly selected, answer the questions below: Do you plan to be with Company one year from now? Branch Yes No Downtown 40 4 Uptown 92 8 a. What is the probability that he is from the Uptown branch? b. What

4 #1 In a study of pain relievers, 100 people were given product A, and 74 experienced relief. In the same study, 30 people were given product B, and 16 experienced relief. Fill in the blanks below to make the most reasonable statement possible
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Refer to Explorations in Literature for a complete version of this story. How is Lizabeth affected by her relationship with her parents in "Marigolds"? Lizabeth likes her parents but would rather spend time with her friends because they look up to her. Lizabeth is frustrated with her parents because she feels they are not there for her when she

Ho: =30 Ha: 30 n=81, x=31.2, s=4.5, =0.01 Find the critical values for this two-tailed hypothesis test. Options: A.+/- 2.33 B.+/- 2.374 C.+/- 2.4 D.+/- 2.575 E.+/- 2.639 What is the conclusion of the hypothesis test? Options: A. There is not sufficient evidence to reject the null hypothesis because2.4>2.374 B. There is not sufficient evidence to

The question is bellow I've attached what I tried out but I'm still not sure if I am doing this correctly In pooled or batch testing, samples are combined and a single result is obtained (positive or negative for the pooled sample). If the pooled testing were to work perfectly, then a positive test would mean at least one person in the pool is
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Consider the accompanying data on flexural strength (MPa) for concrete beams of a certain type. 7.7 6.8 9.7 7.9 7.0 6.5 11.3 7.2 9.0 7.0 8.1 6.3 11.8 5.5 8.7 7.8 7.3 8.9 10.7 11.6 7.8 6.3 7.4 6.8 7.7 7.0 9.7 (a) Calculate a point estimate of the mean value of strength for the conceptual population of all beams manufactured in this fashion. [Hint:
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The instruction is shown in the picture above Consider the data given in the following table. 57827315764551 Click to download the data in your preferred format. Crunchlt! CSV Excel JMP MacText Minitab PCText R SPSS TI Find the sample median. 5" Note that this summary statistic is a better measure of central tendency than the sample mean for this
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2. The US. Census Bureau conducts a survey every month called the American Community Survey to collect data from a sample of the American population on things like income and education. The table below shows the results from 2019 for workers 25 years and older. Educational Level Approximate years of Median Annual education Income Less than high
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A study was conducted to measure the effectiveness of hypnotism in reducing pain. The measurements are centimeters on a pain scale before and after hypnosis. Assume that the paired sample data are simple random samples and that the differences have a distribution that is approximately normal. Construct a 95% confidence interval for the mean of the
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The unemployment rate in a city is11%. If6 people from the city are sampled at random, find theprobabilitythat more than2 of them are unemployed. Carry your intermediate computations to at least four decimal places, and round your answer totwo decimal places.

Can you help me answer this please ? The database summarizes nancial information for 32 companies and their perceived risk of default. Convert these data into an Excel table. Use table-based calculations to nd the average debt and average equity for companies with a risk of default, and also for those without a risk of default. Does there appear
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How would I go about solving this problem? Question 20 Suppose the lower limit of the X% confidence interval for the true proportion is 0.32 (or 32%) and the sample size is 1000. In addition, suppose the sample proportion is 0.35 (or 35%). What is X? Ensure that you round X to two decimal places
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\fAlthough caeine is believed to be safe when consumed in moderate amounts, some health experts suggest that intake of 400 mg of caeine (the amount in about two cups of coffee) is harmless. The amount of caffeine in a cup of cotTee varies according to coffee bean, brewing technique, lter, etc. A random sample of 8-02 cups of coffee was obtained
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1) Identify the types of sampling errors that exist in the following sampling designs. A radio show asks people to phone in their views on whether the United States should house the homeless. The student newspaper plans to make a prediction for the student council election based on a survey of its readers. A new gym chooses to survey the first 20

Course -1530-C92 Abigail Pierson 02/22/23 5: 10)
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We know the following 3 items about a regression equation: #1) Number of TV advertisements is used to estimate number of Widgets sold; #2) Intercept = 1,500; #3) Slope = 12. Which statement is true? Estimated Number of Widgets Sold = 1,500 + 12 * Number of TV ads If 10 TV ads are broadcasted, we may expect approximately 1,620 widgets to be sold If

Problem Page Question A machine that manufactures automobile parts produces defective parts14% of the time. If8 parts produced by this machine are randomly selected, what is theprobabilitythat at least3 of the parts are defective? Carry your intermediate computations to at least four decimal places, and round your answer totwo decimal places.

please assist me 3. The following diagram is a stem and leaf plot of the Life Optimism scores of the employees at La Trobe University. Life optimism Stem-and-Leaf Plot Frequency Stem & Leaf 1.00 Extremes ( =
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A local municipal council researcher wishes to estimate the proportion of ratepayer residents who are satisfied with the council's proposed budgetary plan for the coming financial year. In order to obtain a representative sample of ratepayers, he intends to conduct a census of the households of a typical neighborhood street in the locality. Which

Cloud seeding, a process in which chemicals such as silver iodide and frozen carbon dioxide are introduced by aircraft into clouds to promote rainfall was widely used in the 20-th century. Recent research has questioned its effectiveness [Journal of Atmospheric Research (2010, Vol. 97 (2), pp. 513-525)]. An experiment was performed by randomly

the precision of equipment and instruments is measured by the variability of their operation under repeated conditions. the output from an automatic lathe producing diameter in millimeters of a part gave the following readings for a random sample of size 10: 10.3 9.7 9.6 9.5 9.9 10.2 9.8 10.1 10.2 9.8 find a 90% confidence interval for both the

STATS 13-2 Question 13, 11.1.53-T HW Score: 55.05%, 13.76 of 25 E Homework: Chapter Eleven Homework Part 5 of 6 points Points: 0.14 of 1 Save A company tested 11 random brands of vanilla yogurt and found the number of calories per serving given below. (Note Question list K that more than 110 different brands of vanilla yogurt exist.) Complete
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For the following four questions, use the appropriate formula and your t-Test table in Appendix B2. Use the following study set-up: A researcher is interested in seeing if negative political ads against an opponent (group one) are more persuasive than positive ads for an original candidate (group two). She creates a scale to measure how persuasive
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An oil company executive and an executive of a mining company met during a conference. "They say 30% of the world's undiscovered oil is in the Arctic," started the oil man. "We've drilled 60 exploratory wells and all but 20 of them were dry. Only 2 of those 20 are economical with the oil prices being projected for the next 10 years. The good news

e Exercise 9 (12 POINTS) An important aspect of a federal economic plan was that consumers would save a substantial portion of the money that they received from an income tax reduction. Suppose that early estimates of the portion of total tax saved, based on a random sampling of 35 economists, had a mean of 26% and a standard deviation of 12%. a.
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A simple random sample of size n is drawn. The sample mean, x, is found to be 18.1, and the sample standard deviation, s, is found to be 4.8. Click the icon to view the table of areas under the tdistribution. (b) Construct a 95 confidence interval about u if the sample size, n, is 51. Lower bound 16.73 Upper bound 19.47 (Use ascending order. Round
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A manufacturer claims that a particular car will get at least 50 miles per gallon on the highway. The researchers of a consumer-oriented magazine believe this claim is too high and plan a test with a simple random sample of 30 cars. Assume the population standard deviation for individual cars is 2.3 miles per gallon. The researchers found the

An IQ test has a mean of 105 and a standard deviation of 10 10. Which is moreunusual, an IQ of 125 or an IQ of 84 ? A) An IQ of 125 125 is more unusual because its correspondingz-score, nothing , is further from 0 than the correspondingz-score of nothing for an IQ of 84 84. (Type integers or decimals rounded to two decimal places asneeded.) B. An

(1 point) It is estimated that approximately 8.36% Americans are afflicted with diabetes. Suppose that a certain diagnostic evaluation for diabetes will correctly diagnose 96.5% of all adults over 40 with diabetes as having the disease and incorrectly diagnoses 3.5% of all adults over 40 without diabetes as having the disease. a) Find the
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Q1 .Determine whether the random variable is discrete or continuous. The number of songs on an MP3 player. (Discrete/Continuous) Q2. Which of the following probability experiments represents a binomial experiment? A.Asking 50 adults the amount of their last cell phone bill B.Asking 10 prisoners the number of crimes for which they were convicted

Asimple random sample of size n is drawn from a population that is normally distributed. The sample mean, i, is found to be 110, and the sample standard deviation, 3, is found to be 8. (a) Construct a 96% confidence interval about 11 ifthe sample size, n, is 20. (b) Construct a 96% condence interval about p ifthe sample size, n, is 12. (0]
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Consider an experiment whereby a quarter is selected at random from a new roll of quarters from the bank.That coin is then placed in a cup, shaken vigorously, dumped on the table, and whether it lands up heads or tails is noted (let a one denote heads and zero denote tails). In the Minitab worksheet, the column Coin50 records the result of 50 such

Please assist. b. Estimate the number of crimes for a city with 22 police officers. (Round your answer to the nearest whole number.) Number of crimes 29 c. Interpret the regression equation. For each policeman added, the number of crimes goes by one. up downThe city council of Pine Bluffs is considering increasing the number of police in an effort
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Question content area top Part 1 Do males or females feel more tense or stressed out at work? A survey of employed adults conducted online by a company on behalf of a research organization revealed the data in the contingency table shown to the right. Complete parts (a) through (d) below a. What is the probability that a randomly selected person's

Statistics can help decide the authorship of literary works. Sonnets by an Elizabethan poet are known to contain an average of ? = 6.9 new words (words not used in the poet's other works). The distribution of new words in this poet's sonnets is Normal with standard deviation ? = 2.7. Now a manuscript with five new sonnets has come to light, and

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