Young Adult magazine states the following hypotheses about the mean age of its subscribers. H0 =
Question:
H0 μ = 28
Ha: μ ≠ 28
If the manager conducting the test will permit a .15 probability of making a Type II error when the true mean age is 29, what sample size should be selected? Assume σ = 6 and a .05 level of significance.
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Related Book For
Statistics For Business And Economics
ISBN: 9780538481649
11th Edition
Authors: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams
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