Refer to Exercise 7.87. (a) Perform a test with the intention of establishing that the mean time
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Refer to Exercise 7.87.
(a) Perform a test with the intention of establishing that the mean time to return a call is greater than 1.5 hours. Use \(\alpha=0.05\).
(b) In light of your conclusion in part (a), what error could you have made? Explain in the context of this problem.
(c) In a long series of repeated experiments, with new random samples collected for each experiment, what proportion of the resulting tests would reject the null hypothesis if it prevailed? Explain your reasoning.
Data From Exercise 7.87
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Related Book For
Probability And Statistics For Engineers
ISBN: 9780134435688
9th Global Edition
Authors: Richard Johnson, Irwin Miller, John Freund
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