Compute the power of the test

Assignment Help Basic Statistics
Reference no: EM132845937

Reconsider the data from Medicine and Science in Sports and Exercise described in Exercise 8-30. The sample size was seven and the sample mean and sample standard deviation were 315 W and 16 W, respectively.

(a) Is there evidence that leg strength exceeds 300 W at significance level 0.05? Find the P-value

(b) Compute the power of the test if the true strength is 304 W

(c) What sample size would be required to detect a true mean of 304 W if the power of the test should be at least 0.90?

(d) Explain how the question in part (a) could be answered with a confidence interval.

Reference no: EM132845937

Questions Cloud

Present a frequency distribution for grades : Present a frequency distribution for grades in that unit (that is, find the number of students with HD, D, C,
Confidence interval for the average length : The average length of calls in this sample was 3.8 minutes with a standard deviation of 0.9 minutes.
Will the measurement of my blood pressure be biased : Will the measurement of my blood pressure be biased? Reliable? Valid? Explain your answer.
Assignment - Lab - Research a Hardware Upgrade : Assignment - Lab - Research a Hardware Upgrade - which RAM would you select? Be prepared to discuss your decisions regarding the RAM you select
Compute the power of the test : The sample size was seven and the sample mean and sample standard deviation were 315 W and 16 W, respectively.
Calculate the schedule variance-schdule performance index : Calculate the schedule variance, schdule performance index, and cost (actually value in this case) performance index.How is the project going?
Develop a professional networking plan of activities : Develop a professional networking plan of activities to ensure that effective internal and external workplace relationships are developed and maintained.
Define the events a : Suppose an individual is randomly selected from all adults living in the United States. Define the events A = the individual is CEO of an oil company
Bid history to construct a demand curve : Your assignment is to use the bid history to construct a demand curve.

Reviews

Write a Review

Basic Statistics Questions & Answers

  What is the value of the f ratio

a) The average value for Sample B is: (round to two decimal places) b) What is the value of the F ratio? c) What is the corresponding p value?

  Probability that percentage of scores less than hundred

Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 68-95-99.7 rule to find the following quantities.

  Why driver be tempted not to use seat belt just on this trip

Why might the assumption of independence be violated? (b) Why might a driver be tempted not to use a seat belt "just on this trip"?

  Average level of reading ability

A researcher tested the reading ability of two groups of primary care patients. The scores on the test range from 1 to 9 with 9 indicating a high degree of reading ability and 1 very limited reading ability.

  The incidence of occupational disease in an industry is

1. the incidence of occupational disease in an industry is such that the workers have a 20 chance of suffering from

  What number of leaves corresponds to a z-score of 1.25

Leaves The number of leaves taken per year by employees of an office has a mean of 50 and a standard deviation of 5.

  Evidence that the percentage of students with laptop

A college is considering making the purchase of a laptop computer a requirement for some of its programs. In the past, only 20% of students owned laptop computers. A random sample of 300 students revealed that 77 of them had laptop computers

  What is the effective annual yield

Yields. A Macrohard Corp. bond carries an 8 percent coupon, paid semiannually. The par value is $1,000, and the bond matures in six years.

  Different win-loss patterns for seven possible games

Suppose the world series is about to begin. Some people get together and each decide to predict different win-loss patterns for the seven possible games during the coming series.

  Find the mean and the median for each list of values

Find the mean and the median for each list of values:- 64, 68, 72, 76, 80, 86-  10, 6, 2, 7, 100- 30, 10, 40, 30

  A physician claims that 136 of all pregnant females smoke

a physician claims that 13.6 of all pregnant females smoke during their pregnancy. a random sample of 400 pregnant

  What is a urinary tract infection

What is a Urinary Tract Infection (UTI) and what are the causes? Who is more likely to get a UTI - males or females?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd