9.39 Assumptions important? Refer to the previous exercise. a. Explain how the result of the 95% confidence

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9.39 Assumptions important? Refer to the previous exercise.

a. Explain how the result of the 95% confidence interval shown in the table agrees with the test decision using the 0.05 significance level.

b. Suppose you instead wanted to perform a one-sided test because the study predicted that the increase in sales would be higher with coupons. Explain why the normal population assumption might be problematic.

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Statistics The Art And Science Of Learning From Data

ISBN: 9781292164878

4th Global Edition

Authors: Alan Agresti, Christine A. Franklin, Bernhard Klingenberg

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Question Posted: Sep 14, 2024 05:02 AM

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9.39 Assumptions important? Refer to the previous exercise. a. Explain how the result of the 95% confidence

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Statistics The Art And Science Of Learning From Data

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