Question: A new diet and exercise program claims that it significantly lowers a participant's cholesterol level. In order to test this claim, a sample of 60

A new diet and exercise program claims that it significantly lowers a participant's cholesterol level. In order to test this claim, a sample of 60 participants is taken. Their cholesterol levels are measured before and after the three-month program. Forty of the participants recorded lower cholesterol levels at the end of the program, 18 participants recorded higher cholesterol levels, and 2 participants recorded no change.

a. Using the sign test, specify the competing hypotheses to test the program's claim.

b. Calculate the value of the test statistic.

c. Calculate the p-value.

d. At the 5% significance level, do the data support the program's claim? Explain.

Step by Step Solution

★★★★★

3.43 Rating (162 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Let p represents the population proportion of increased ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

1140-M-S-L-R(8968).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

Testing the effect of a diet and exercise regimen on subjects cholesterol levels, a sports medicine clinic enlists 40 volunteers whose cholesterol levels are measured before and after the 1-month...

In a study of the Kingman diet and exercise program, 40 subjects lost an average of 22 pounds. There is about a 1% chance of getting such results with a program that has no effect?

1. A doughnut shop sells a dozen doughnuts for $7.95. Beyond the fixed costs (rent, utilities, and insurance) of $165 per day, it costs $1.45 for enough materials and labor to produce a dozen...

1-1 Basic Skills and Concepts Statistical Literacy and Critical Thinking 1. Online Medical Info USA Today posted this question on its website: "How often do you seek medical information online?" Of...

Hi can someone help me with that thank you? Math 10-Hypothesis Testing - comparing two means Name gw7 1. What is the difference between two samples that are dependent and two samples that are...

1.For the following pairs, indicate which do not comply with the rules for setting up hypotheses, and explain why. (Select all that apply.) (a) H 0 : = 12, H a : = 12 This pair complies. This pair...

Answer the following True/False, Multiple Choice, Fill in blank as QUICKLY AS POSSIBLE*. Please let them be correct answers. No explanation needed. 1 When conducting a one-sample t test, if a sample...

1.) Is this research study scholarly or non-scholarly? How would you support your evidence? 2.) Is this research study empirical or non-empirical? How would you support your evidence? REFERENCE:...

Business memorelating to Audit. All questions and materials needed are attached. Please, ensure you are familiar with auditing before accepting this project. Thank you. THE ACCOUNTING REVIEW Vol. 90,...

In 2005, the United Kingdom was at full employment. Nominal GDP was 800 billion, the nominal interest rate was 7 percent a year, the price level was 120, and the velocity of circulation was 2. What...

Distinguish between business risk and audit risk. Why is business risk a concern to auditors?

What is a difficulty faced by the OS when managing a concurrent system?

What policy change did Paul Volcker implement, and how did it affect interest rates, output, and inflation over time?

Investors usually consider a variety of information to make investment decisions. The accompanying table displays a sample of large publicly traded corporations and their financial information....

Refer to the previous exercise for a description of the problem and data set. The financial analyst wants to find out if there are any missing values in the data set. a. Are there any missing values...

Ian Stevens is a human resource analyst working for the city of Seattle. He is performing a compensation analysis of city employees. The accompanying data set contains three variables: Department,...

Harry plans to start saving to provide for his retirement. Beginning one month from now, he will begin depositing a fixed amount each month into a retirement savings account that will earn 8.4% APR,...

em... Convert PDF to Exc... CalcTool: Conjuncti... nform 1 / 2 58% + Marks Question 2: Due to mismanagement, Pakistan Steel Mills is currently over levered with a debt to capital ratio of 80% and a...

A hair dresser finds that the time taken to cut the men's hair follows a normal distribution with a mean of 30 minutes and a standard deviation of 10 minutes. She notes that 36 males from a...