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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.
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?
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