Suppose that of 1000 customers surveyed, 850 are satisfied or very satisfied with a corporations products and
Question:
Suppose that of 1000 customers surveyed, 850 are satisfied or very satisfied with a corporation’s products and services.
(a) Test the hypothesis H0: p = 0.9 against H1:p ≠ 0.9 at α = 0.05. Find the P-value.
(b) Explain how the question in part (a) could be answered by constructing a 95% two-sided confidence interval for p.
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a The parameter of interest is the true fraction of satisfied customers Either approach will yiel...View the full answer
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Related Book For
Applied Statistics And Probability For Engineers
ISBN: 9781118539712
6th Edition
Authors: Douglas C. Montgomery, George C. Runger
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