Consumer Reports (January 2005) indicates that profit margins on extended warranties are much greater than on the
Question:
(1) Letting p denote the proportion of all digital camera customers who have purchased the new warranty, calculate the p- value for testing H0: p = .20 versus Ha: p = .20.
(2) How much evidence is there that p exceeds .20?
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Related Book For
Essentials Of Business Statistics
ISBN: 9780078020537
5th Edition
Authors: Bruce Bowerman, Richard Connell, Emily Murphree, Burdeane Or
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