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Mathematics Questions and Answers February 07, 2021

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URGENT! Please help! Suppose that 16 lightbulbs in a box of 95 are broken and that 3 are selected at random m'iout' replacement. {Note the differences and similarities with a previous lightbulb question in this assignment.) .-. a) How many ways are there to choose the sample? (Enter an integer.) U P. b) How many samples contain no broken
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Answer the following questions. Put the answers on the blanks! Round to 2 decimal places. 1. A survey of 2306 adult American workers aged 18 and older found that 417 have donated blood in the past two years. [1: point estimate for the population proportion: = symbol number from problem point estimate of the population standard deviation: = symbol
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Please write your experience as a biostatistician or statistician for this questions: 1. Describe a previous analytic project that challenged you. What types of methods did you use to conduct your analysis? What were the challenges (including those related to data management and cleaning) and how did you overcome them? 2. Describe a previous data

Question 4 The straight line L passes through points A(4, 3) and B( 1, 7). (a) Find the equation of L. Write your answer in the form our + by + d = 0,151, b, d E Z. [4] Line M with equation x 2y = 0 intersects line L at point P. (b) Find the coordinates of P. [3] (c) Explain why P is the point on L that is closest to the origin. [3] [Maximum mark:
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pls help me with this statistics question asap pls. The amount oftime that a drivethrough bankteller spends on a customer is a random van'able with a mean p: 8.8 minutes and a standard deviation or: 4.5 minutes. It a random sample ofB1 ulstomers is observed, nd the probability that their mean time at the tellers window is {a} at most 18 minutes;
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is Question: 3 pts Question Help A certain type of candy is reported to be distributed with the color percentages shown in the table below. The number of each color in a random bag of candy is also shown below. Use the chi-square goodness-of-fit test to decide whether the color distribution differs from the reported distribution. Use a = 0.05
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1.It is widely suspected that young people today are waiting longer to get married. We take a random sample of 50 men and find that their average age at first marriage is 28 years, with a standard deviation of 5.2 years. Then the 90% confidence interval is (26.765, 29.235). Which of the following gives a correct interpretation of this confidence

how do you do longhand An employment information service claims the mean annual salary for senior level product engineers is $98,000. The annual salaries (in dollars) for a random sample of 16 senior level Annual Salaries product engineers are shown in the table to the right. At a= 0.05, test the claim that the mean 100,606 96,242 93,485 112,723
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The Institute of Education Sciences measures the high school dropout rate as the percentage of 20-through 28-year-olds who are not enrolled in school and have not earned a high school credential. Last year, the high school dropout rate was 6.8%. A polling company recently took a survey of 1,900 people between the ages of 20 and 28 and found that
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29. Suppose you are trying to use linear regression analysis to determine whether the effect of one variable, X1 , on another variable, Y , depends upon the value taken by a third variable, X2 . Which regression model should you run. A. Yi = 0 + 1 X1i + 2 X2i + ei B. Yi = 0 + 1 X1i + 2 X2i + 2 X1i X2i + ei C. X1i = 0 + 1 Yi + 2 X2i + ei D. X1i X2i

a researcher wants to show that students can improve their political science grades by reading the newspaper daily. He randomly assigns fifteen students to refrain from reading any newspapers before their first test. He instructs the other fifteen students to read the newspaper in his office daily for one hour until the test. He then wants to

Answer Randomly selecting a yellow candy? 1/6 Randomly selecting either a blue, red, or orange candy? 3/6 Randomly selecting something other than a yellow or 4/6 brown candy? 2. Find each of the following probabilities for a normal distribution. Answer p (z -0.25) 0.5987 p (0.30
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A supermarket chain (FRESHM) funds the purchase of merchandise monthly by bank loans. Monthly loan data were collected over the last 25 months. See the data at the end of this assignment. Answer the following questions: a. Use the linear regression approach 1.A test for the presence of linear trend was run. From the computer output answer. Which

1. At XYZ Restaurant, which sells only pepperoni pizza ($10/pizza), the expenses per pizza are: Fixed Costs General Labor $1,500 Rent $3,000 Insurance $200 Advertising $500 Utilities $450 Total $5,650 Variable Costs Flour $0.50 Yeast $0.05 Water $0.01 Cheese $3.00 Pepperoni $2.00 Total $5.56 a)Find a break-even point. b)What kind of profit

I need complete and clear solution. Pls answer. Ty Answer from numbers 2-10. Instructions: Given the table below, analyze and evaluate the following summations. Xi YA OBSERVE 2 72 - Ending Numba 3 OwUAW Notation. Symbol The Function 3 i=1 Sharing Number 1. El=zx, = X2 + X3 + X4 3. Ef-[(x + 3) ]2 =3+2+4=9 2. El=1 3x 4. Ef-2(x, + yi)5. Zi= =(y, + x
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A study by Becker Associates, a San Diego travel consultant, found that 30% of the traveling public said that their flight selections are influenced by perceptions of airline safety. Thirty-nine percent of the traveling public wants to know the age of the aircraft. Suppose82% of the traveling public who say that their flight selections are

2. Assume that when you shoot at a target, you have an 80% chance of hitting it, and all your shots are independent of one another.Now consider a game in which you will take just 4 shots, and it costs nothing up front to play the game, but at the end the prizes and penalties are as follows: # of hits 0 1 2 3 4 prize/ penalty lose $100 lose $40

A company sells its products in a market where themarketprice, p , is linked to the quantitysold, q , by the linear equation p = 120 2 q . a)Calculate the market price if the company sells 50 units. Whatisthe revenueequationand the revenue if company sells 50 units? The company incurs fixed costs of $400 and an additional cost of $12 for each unit

The doubling time of a population of flies is 4 hours. By what factor does the population increase in 36 hours? By what factor does the population increase in 2weeks? A. By what factor does the population increase in 36 hours? (Type exponential notation with positive exponents. Use integers or decimals for any numbers in theexpression.) B. By what

LI. [Confidence interval (CI) for u:] Suppose we want to construct 100 confidence intervals (CIs) with confidence level (1 - a) 100% = 95% for the unknown population mean a of a normal distribution using the following steps: Step 1. Generate and store in columns c6-c30 100 random samples of size 25 each from the normal distribution with parameters
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Test the claim that the proportion of people who own cats is smaller than 40% at the 0. 10 significance level. The null and alternative hypothesis would be: Ho:p = 0.4 Ho:p 0.4 H:p 0.4 H:p
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For a given linear regression model, generate a sample of size n= 100 with parameter values ? = 5, ? = 1,? = 3, ?^(2) = 0.2, and constants xi = i/100, z i= (100?i)/100, i= 1,...,100. Write a function in R that finds the maximum likelihood estimates of the model parameters ?, ?, ??R1 and ?^(2) ? (0,10). Yi = at (Bxcityzi) + BEi, ci ~N(0, 02), i =
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find the answer A random sample of 30 married couples were asked to report the height of their spouse and the height of their biological parent of the same gender as their spouse. The output of a regression analysis for predicting spouse height from parent height is shown. Assume that the conditions of the linear regression model are satisfied.
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Suppose 30 control limits are constructed for the average temperature in a furnace. Samples of size 4 were selected with the average temperature being 5000 C and a standard deviation oi 50 C, Id. If the process average drops to 4960, what is the probability of the shift being detected within the first two samples
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i just need help with this 14. When to Use What: For each example below you should start to construct a confidence interval by identifying which distribution should be used to find the margin of error. The options are the z-distribution, the t-distribution, or neither. (a) a confidence interval for a population mean where n = 25, the population
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QUESTION 1 Course Learning Outcome (CLO) 1: Critically evaluate contemporary issues, theories and empirical research evidence in financial and management accounting, including strengths and limitations. International Financial Reporting Standards (IFRS) and General Accepted Accounting Principles (GAAP) have disagreement in the treatments to some
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You don't have to give a thorough explanation. But something simple accompanied with the answer works fine. The assignment is due tonight I'd just like simple clarification. Most likely my teacher will go over the answers so you don't have to give a long explanation but I would like to know what I'm doing as I complete the assignment. QUESTION On
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Part 2: Show your work and explain your process for determining the solution for each of these problems on a word document with the solution given below the problem. If Excel was used, please indicate that as well on the word document. A word document and/or the Excel Workbook (if used) should be submitted to the Dropbox with labels on the

Context I. In an experimental study designed to compare the efficacy of four pain relievers, a balanced completely randomized design involving a total of 20 patients was used. The related ANOVA table below contains five missing entries labeled (a) to (e). Source DF 55 MS F Treatments (a) (b) 4.067 (c) Error (d) 9.574 (e) What is the conclusion of
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Review Lectures 18 and 19 in Module 5, sections 10.2-10.4 in chapter 10 of the textbook, then complete problems 1 and 2.For problem 2, use SAS to perform the analysis and show the pertinent SAS output along with your explanation of the results. 1.A 31-run experiment was conducted with 6 independent predictor variables. The table below gives the
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Note: Attach the diagrams and tables into the file. The data set contains the average Math SAT scores and Verbal SAT scores in 51 states. Answer in complete sentences. R is a software needed to calculate the data and make the graphs. State Verbal SAT Math SAT Alabama 593 572 Alaska 547 533 Arizona 563 553 Arkansas 614 594 California 531 524

find the answer A poll asked people if college was worth the financial investment. They also asked the respondent's gender. The table shows a summary of the responses. Name a pair of mutually exclusive events that could result when one person was selected at random from the entire group. Female Male All No 42 47 89 Unsure 96 90 186 Yes 572 410 982
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I NEED ANSWER ASAP Question 4 A rivet is to be inserted into a hole. A random sample of n = 15 parts is selected, and the hole diameter is measured. The sample standard deviation of the hole diameter measurements is s = 0.009 millimeters. Find a 99% lower confidence bound on the standard deviation. Round your answer to four decimal places (e.g.
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1. In cell A1, enter 20400. This value can be calculated using Mean - 3Standard Deviation [30000 - 3(3200)]. 2. In the cell below it, enter 20401 and create a series from 20400 to 39600 (where 39600 is Mean + 3Standard Deviation). You can do this quickly by using the autofill option, or use the fill handle and drag it down to fill the cells. 3. In

Please help me determine the following variance and standard deviation for the equations in the below attached picture. 1. Determine the variance and standard deviation for each grouped data set. Show your solution. The data set belongs to a particular sample. X 75 - 78 2 79 - 82 4 83 - 86 7 87 - 90 9 91 - 94 5 95 - 98 3 2. Determine the variance
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Use the information provided in the histogram below to answer lQuestions 1 3. l-istogram of Mariner of Crates Shipped to Ireland h- u I: II :I 3' II: 11K} 1115 1 11} 115 121} 115 IIIIIJer of Crates The histogram depicts a frequency diagram based on daily total numbers of crates shipped by a freight company to the country of Ireland. The daily
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Hello, please may I get some help with these questions QUESTION 21 A group of UNISA students were asked what device they mostty use for accessing the myUnisa module sites. The responses were coded as 1 for laptop computer, 2 for desktop computer and 3 for a smart phone. The following data was collected: 1, 2, 1, 1, 1, 1, 2, 2, 3, 3, 1, 2, 2, 3, 1,
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confidence interval for u if the population ol 8.3 A random sample of 100 items is taken, producing a sample mean of 49. The population standard deviation is 4.49. Construct a 90% confidence interval to estimate the population mean. 8.4 A random sample of size 70 is taken from a population that has a variance of 49. The sample mean is 90.4 What is
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Questions are attached. Thank you for helpin! For the probability density function f(x), find the following values. f(x) = 12x2(1 - x) on [0, 1] (a) E(X) = X (b) Var(X ) = ( c) o (X) =\fIn a 4-year study, the number of years that a patient survives after an experimental medical procedure is a random variable Xwith probability 3 2 density function
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8) Find the mixed strategy Nash equilibrium of the following normal form game. Player 2 Ti T2 T3 S1 2, 3 3, 5 1, 1 Player 1 S2 1, 4 4, 3 0, 5 O Player 1 attaches probability ($1, $2) = (7. ) and Player 2 attaches probability (71, T2, T3) = (5: 3: 6) Player 1 attaches probability ($1. S2) = (. =) and Player 2 attaches probability (T1. T2, T3) =
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The table below lists the number of games played in a yearly?best-of-seven baseball championship?series, along with the expected proportions for the number of games played with teams of equal abilities. Use a 0.05 significance level to test the claim that the actual numbers of games fit the distribution indicated by the expected proportions. Games
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Exit polling is a popular technique used to determine the outcome of an election prior to results being tallied. Suppose a referendum to increase funding for education is on the ballot in a large town(voting population over100,000). An exit poll of 400 voters finds that 192 voted for the referendum. How likely are the results of your sample if the

1.A researcher conducts a hypothesis test and fails to reject the null hypothesis at the 0.05 level of significance.Based only on this information, I may conclude that (Circle one): (a)I would fail to reject the null hypothesis if the level of significance was 0.01 rather than 0.05. (b)I would reject the null hypothesis if the level of

QUESTION 27 10 points Save A This is the second choice question that you can do. Please do one of these two options for a total of 10 points Leslie Knope is running a yearly raffle at the local Pawnee community college. The raffle is for a 500 thousand dollars prize. The students can buy any number of tickets for 50 dollars a ticket. The Parks and
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Purdue administrators want a good estimate of how many of all the current Purdue students held at least a part time job over the summer. They do not want to take a census! a) From what you learned this semester, how should they go about doing that in order to get the best possible estimate? Be sure to use at least 5 terms in a meaningful way from

Upon reading statistical process control, assume that you are an employee of a particular company and you were given the task to monitor the required "weight standard" of a particular product (i.e. Sardines or Liver Spread with daily production output of about 100,000 units). The company will be renewing its DTI permit in the coming months and has

A Markov chain {Xmas 2 0} with states {0,1,2} has the transition probability matrix P with powers P2 and P3: 1/2 1/4 1/4 5/12 5/24 3/8 25/72 25/144 23/48 F: 2/3 1/3 0 ,P2= 5/9 5/18 1/6 ,P3 25/54 25/108 11/35 0 0 1 0 0 1 0 0 1 (a) Draw the state diagram for this chain. (b) Identify the classes of this Markov chain and determine which states are
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Population 5 Minutes, 54 Seconds [ Choose ] [Choose ] any systematic discrepancy between a sample and the corresponding population Sample a sample where individual units (e.g. people) are tracked through time A sample in which every member of the population is equally likely to be included. The set of all possible cases that might have been
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Please assist with question. 0/4 pt If n=25, =39, and s=20, construct a confidence interval at a 80% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place. Can we conclude that the population mean is at least 34.83? O Yes O No Can we conclude that the population mean is no more than
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Brooke, Samuel, and Jinshu use three different sales forecasting models. The following table shows their forecast errors. *SAS Code needed* a) Graphthese forecast errors for each model separately (3 plots) and one integrated plot including 3 forecast errors. b)Which error pattern appear to be random? c) Decide whether models Brooke, Samuel, and

10. Suppose that only 20% of all homeowners in an earthquake-prone area of California are insured against earthquake damage. Thirty homeowners were selected at random for a survey. (a) Describe the probability distribution of x using special notation: X~ (b) Calculate the mean of the homeowners who are insured against earthquake damage. Don't
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Are birthdays "evenly distributed" throughout the year, or are they more common during some parts of the year than others? Owners of a children's toy store chain in the Northwest asked just this question. Some data collected by the chain are summarized in the table below. The data were obtained from a random sample of 200 people. The birthdate of
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Please answer all parts of the following question: Suppose a chemist has two independent measurements XA and X3 available to estimate an unknown concentration level C. Suppose further that X A ~ N {C 4) and X3 ~ N(C 2]. Notice then that 0.4 XA and C3- X3 are both point estimes ofthe unknown concentration level 0. (a) Suppose we take the average of
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Please help me I need help answering A-E https://sicc.instructure.com/courses/741972/assignments/9742689 art II should include: E DO A. Using your graph from Part I, suppose you are interested in p for the most common category. State what p graph-2.pdf (1 pape) - Edited represents in context. The marrital Status among the partigant! B. Check the
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Question 1 The following data show the lengths, in feet, of 46 boats moored in a marina. 42, 26.5, 32.5, 24, 42, 28.5, 42, 14.5, 24, 33.5, 40.5, 20.5, 15.5, 11, 45, 17, 22, 41.5, 33, 20.5, 24.5, 47.5, 32.5, 13.5, 13.5, 35, 34, 48.5, 11, 18, 29.5, 45, 41.5, 13.5, 13, 11.5, 33.5, 38, 11, 29.5, 49.5, 27.5, 26, 28.5, 41, 35.5 Find the median of the
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Correlation problem Question 1.2.3 Imagine that you picked the words "san" and "francisco" as the two words that you would expect to be correlated because they compose the city name San Francisco. Assign unexpected to either the number 1 or the number 2 according to which statement is true regarding the correlation between "san" and "francisco."
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I am stuck on this question and need some help with explanations, I put some answers that I came to but I am unsure if correct 10. (8 points) A telemarketer makes six phone calls per hour and is able to make a sale on 30 % of these contacts. During the next two hours, obtain: (a)The probability of making exactly four sales. (Round the final answer

2. Between 1971-1975, The CDC sampled white blood cells from 1,241 people aged 25-34, and found the average number of blood cells per microliter to be 4.5 with a standard deviation of 1.63 blood cells. (https://www.cdc.gov/nchs/data/series/sr_11/sr11_220.pdf) Assume that white blood cell count is normally distributed. a. If one person aged from

1). Some researchers were studying susceptibility to advertisement. They suspected that people would prefer the flavor of water that was labeled as "Imported from France" to water labeled "Aquafina" to water labeled "tap." They also suspected that children between the ages of 6 and 12 would be more susceptible to advertisement than adults 18 and
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Please answer the following question: QUESTION 1 A comparison test for means from independent samples is run. The test is a t test because the population s.d.s are not known and it is assumed that both samples are drawn from normally distributed populations. Sample 1 results: x1=12 and $1= 1.5, n=35 Sample 2 results: x1=10.8 and s1= 1.4, n=46 What
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see attachment 14 25. (4 pts) The following is the final ANCOVA output for this analysis: Tests of Between-Subjects Effects Dependent Variable: Patient Satisfaction Type Ill Bum of Source Mean Square Sig Corrected Model 1960. 123" 5 393.225 2:448 Intorcept 48756.213 48756.213 303.532 Job Bathfaction 34.332 34.332 214 545 Field 1906 116 401.520
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11- A constant is something that assumes only one: a.Value b.Piece c.Tokens d.Sampling 12- A variable is something that can change, in contrast, to a: a.Ordinal b.Constant c.Prognosis d.Distribution 13- Inferential statistics give information regarding kinds of claims or statements about a population based on data from a: a.Progress note

Quartiles.If z is the positive number such that the interval within z tandard deviations of the mean contains 50% of a normal distribution, then a. Explain why this value of z is about 0.67. b. Explain why for any normal distribution the first and third quartiles equal - 0.67 and + 0.67. c. The interquartile range, IQR, relates to a by IQR = 2 x

question 17 E Homework: Homework 1 Question 17, 2.4.1 HW Score: 0%, 0 of 45 O Points: 0 of 1 In this section we use r to denote the value of the linear correlation coefficient. Why do we refer to this correlation coefficient as being linear? Choose the correct answer below. O A. The term linear refers to a straight line, and r measures how well a
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Font Paragraph Styles Instructions: - Show your work. If you are using the statistics features on your calculator, then say what commands you used. - Clearly indicate (circle or underline) your answer. - For multiple choice questions, choice the single best answer. For Questions 1 and 2: Randomly selected High School students were asked how many
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Hypothesis Testing State the Null and Alternative Hypothesis of the following examples: The mean number of years Filipinos work before retiring is 54. At most 60% of Filipinos vote in national elections. The mean starting salary for engineering graduates is at least P100,000 per year. Twenty-four percent of seniorhigh school students get drunk

Show all computations; you may use excel to verify your answer only and the second part of e. X= additional number of studying hours 4 3 8 7 8 11 14 Y= Grade improvement 5 5 9 8 10 13 16 a. Draw a scatter diagram and speculate on the linear relationship between x and y b. Find the coefficient of correlation and Comment on it. Use the formula

1. The volume of a cylindrical can in cma is x) = 4an + 28 mt:2 + 6511;: + SD 11. The can is (x + 2) cm high. wherex ;._ 2. Note that. unw = trrzh. where r is the radius and h is the height of a cylinder. a. What is the radius of the can? {3 marks) b. A beverage company is designing a gift cup that goes with the beverage can mentioned in part (a)
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Suppose a random sample of 110 companies taken in 2007 showed that 28 offeredhigh-deductible health insurance plans to their workers. A separate random sample of 120 firms taken in 2008 showed that 46 offeredhigh-deductible health insurance plans to their workers. Based on the sampleresults, can you conclude that there is a higher proportion of

A psychologist was looking at the effects of an intervention on depression levels. Three groups were used: waiting list control, treatment and post treatment (a group who had had the treatment 6 months before). The change in depression levels over the time of the treatment was recorded (although bear in mind that only the treatment group actually
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A car dealership owner claims that the average price of the cars on his lot is less than $14900. You test this claim by sampling 25 cars which have an average price of $14481. Assume the population standard deviation is $1047 and the car prices are normally distributed. At a 0.05 level of significance, is there enough evidence to reject Ho and
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not sure how to work this problem Assume a member is selected at random from the population represented by the graph. Find the probability That the P H'gamb} $093th member selected at random is from the shaded region at the graph. Assume the variable x is normally distributed. on\" on 0 m 3'3 234:1:293 244 234 293 Pregnancy length [in days} The
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The scores of the 48 members of a sociology lecture class on a 50-point exam were as follows. Complete parts (a) through (c) below. Eff Click the icon to view the data. (a) Construct frequency and relative frequency distributions. (Round to the nearest integer as needed.) Class Limits Frequency f Relative Frequency X I Data Table 21-25 26-30 31-35
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Please refer to attachment Problem 3. (12 points) Wayne county is setting up a COVlD-l9 free testing station at the UM-Dearborn campus. The county managers are expecting the number of testers is about 180 during the 9 AM - 5 PM operating hours. They also expect that the number of testers arriving is Poisson distributed. a) Calculate the number of
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5 a) A sample of 50 randomly selected men with high triglyceride levels consumed 2 tablespoons of oat bran daily for 6 weeks. After 6 weeks, 60% of the men had lowered their triglyceride level. A sample of 80 men consumed 2 tablespoons of wheat bran for six weeks. After six weeks, 25% had lower triglyceride levels. Test the claim that there is a
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Please refer to the following question: Consider a Boolean classification problem with a yeso class label (and some features). Consider a classifier called VERY_S|MPLE that works as follows. Let C be the class label that occurs more frequently in the training dataset {if both yes and no are equally frequent, let C = "yes\" to break the tie). When
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Please help with the attached question(MLC Table attached): Illustrative Life Table: Basic Functions and Single Benefit Premiums at / = 0.06 Lives are independent. X 1000A 1000/ Axd 1000Axxx+10 1000And X 16.1345 86.73 50.89 16.2844 78.24 34.71 16.6432 57.93 16.51 16.4093 71.17 19.17 Baboo Babao 16 4080 67.96 18, 13 16.1541 85.62 22.70 16.2187
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Late payment of medical claims can add to the cost of health care. Suppose 80.6% of the claims were paid in full when first submitted for one insurance company. The insurance company developed a new payment system in an effort to increase this percentage. A sample of 270 claims processed under this system revealed that 230 of the claims were paid

This is all content about this problem. Please answer 1-3 questions. Thank you. Problem 1 (Estimating the linear regression model using GMM.) (44 points.) Consider the following regression model: yt = 0121,t + 02 x2, t + ... + 0kick,+ + Et, (1) with t = 1, ..., T. Notice that, more compactly, we can also write yt = x1 0+ Et, where X1,t X 2 , t X.
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1. A psychological study explored whether playing violent video games made people more aggressive toward other people. 200 college students volunteered for the study. Half were randomly assigned to watch a violent video game called "Wolferstein 3D". The other half were randomly assigned to play a non-violent video game called "Myst". Then the

Question 5 (1 point) The following data represent the weight of a child riding a bike and the rolling distance achieved after going down a hill without pedaling. Weight (lbs.) Rolling Distance (m.) 59 26 83 43 97 49 56 20 103 65 87 44 88 48 91 42 52 39 63 33 71 39 100 49 89 55 103 53 99 42 74 33 75 30 89 30 102 40 103 33 99 33 102 35 86 37 85 37

1) A tire manufacturer is considering a newly designed tread pattern for its all- weather tires that is supposed to decrease the stopping distance. The tread that is currently used has a mean stopping distance of 125 feet. a) What would be the null and alternative hypothesis for testing whether the new tread has an average stopping distance less
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You may need to use the appropriate table in the Appendix of Tables to answer this question. /1 Points] DETAILS UHSTAT4 10.E.044. MY NOTES For each combination of sample size and sample proportion, find the approximate margin of error for the 95% confidence level. (Round the answers to three decimal places.) (a) n = 100, p = 0.52. (b) n = 500, p =
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6. (20 pts) A baker is deciding how many batches of muffins to make to sell in his bakery. He wants to make enough to sell every one and no fewer. Through observation, the baker has established a probability distribution. X P(x) 1 0.15 2 0.35 3 0.40 4 0.10 a. Define the random variable X b. What is the probability the baker will sell more than one
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A chemical compound contains 3 particles of a reactant and 6 particles of a catalyst. Particles are removed from the compound at random, and after the removed particle is examined, it is returned back to the chemical compound together with an additional particle of the same type. We call this process of removal/return a "reaction". (a) Assume
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Rolling 2 dice with 6 sides Event Count Total Proportion Sum of 2 rolls = 5 113 1000 0.113 Frequency 150 100 50 8 10 12 Sum of 2 rollsRolling 2 dice with 6 sides Event Count Total Proportion Sum of 2 rolls 5 685 1000 0.685 Frequency 150 100 50 10 12 Sum of 2 rollsThe theoretical probability that the player lands on "Reading Railroad" on the
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What I Know Before studying this module, take this pre-test to find out how much you already know about the topic covered. Write the chosen letter on a separate sheet of paper. 1. How is the variable, as described in Algebra, similar to a random variable? A. Both variables can take on assigned numerical values B. Both variables correspond to
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The tables below show prior, conditional, joint, marginal, and posterior probabilities for 3 states of nature: Good, Fair, and Poor. Encouraging and Discouraging are the possible forecasts of sample information. Encouraging Prior Conditional Joint Posterior Good 0.25 0.3 0.075 0.205 Fair 0.35 0.44 0.154 0.422 Poor 0.4 0.34 0.136 0.373 Discouraging
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Problem 1. A cement delivery company has a eet of trucks that weigh 6,700 kg unloaded. The trucks are loaded with 800 bags of cement, each with a mean weight of 44 kg and a standard deviation of 5 kg. Assume that the bag weights are independent and identically distributed. Truck weights are limited to 42,000 kg to avoid damaging the road. a) What
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Practice problem help. Perform a Multi-Atribute Decision analysis using the following utility table and k values. Which combination of Overrun Time and Extra Cost is the best choice? Time Utility Cost Utility Overrun 1 29000 1 2.8 0.87 43000 0.85 3.1 0.44 50000 0.74 5.7 0 110000 0.47 133000 0 k1 = 0.78 k2= 0.5 0 110000 A 0.18 78 133000 29000 21
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QUESTION 19 To estimate the proportion of people who lack the depth perception in vision, 376 randomly selected subjects were tested for depth perception. According to the test 35 of these 376 show a lack of depth perception. How large a sample random sample must be taken to estimate the proportion of the people in the entire population, who show
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Data set 3 Sinusoidal Set The data set below describes the average low temperature for Pine Bluff, All from January to December 2015. K iv ' 17'. _ 35 ' ' '2' ' ' \"59 *Label your x-axis as the months by 1's going from 1'24. (even though you haVe 12 months of data] \" m'i'" \"" ":2 *Label your yaxis for temperature starting with 25 and increase by
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(Type an integer or decimal rounded to two decimal places as needed.) The median download speed is . (Type an integer or decimal rounded to two decimal places as needed.) The median upload speed is . (Type an integer or decimal rounded to two decimal places as needed.) 1:. Compute the variance. standard deviation. range, and coefficient of
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Use the sample informationx x = 36, = 7, n = 17 to calculate the following confidence intervals for assuming the sample is from a normal population. (a) 90 percent confidence. (Round your answers to 4 decimal places.) The 90% confidence interval is fromto (b) 95 percent confidence. (Round your answers to 4 decimal places.) The 95% confidence

mathematics... asap Question 1 Solve these equations for r, showing working. If the equation has no solution (there is no value of r that satisfies the equation) clearly explain why this is so. All the answers must given in the exact form (i.e. no rounded decimals) (a) log, (log, (3.1)) = 0 (b) ex-5246 = 1 (c) log:(x2 - 9) - log;(r + 3) = 2 -
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Question 15 (5 points) Your body mass index (BMI) is your weight in kilograms divided by the square of your height in meters. A study by the National Center for Health Statistics found that the BMI of American men (ages 20-29) is approximately Normal with mean 26.8 and standard deviation 5.2. How high must a BMI be in order to place in the top 16%
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A researcher studying stress is interested in the blood pressure measurements of chief executive officers (CEOs) of major corporations. He has good reason to believe that the mean systolic blood pressure, . of CEOs of major corporations is less than 134 mm Hg, which is the value reported in a possibly outdated journal article. He plans to perform
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The local school district is comparing two methods for teaching mathematics to third-grade children.One class of n = 20 students is being taught by method A and another class of n = 20 is being taught by method B.At the end of the school year, all of the students take a standardized math achievement test.The scores for the students taught by

Urgent help needed 3. [20 points] A fair coin is tossed repeatedly until head appears for the third time. (a) Calculate the mean and variance of the total number of tails that show up (b) Let X be the random variable that denotes the total number of tails that show up. Write down the probability mass function and cumulative distribution function
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