Ten participants tried a new weight loss diet for two months. The resulting weight losses (pounds} are

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Ten participants tried a new weight loss diet for two months. The resulting weight losses (pounds} are

20.2   11.0   15.4   9 .9  7.9   15.6   15.5   23.1   11.0   11.4

(a} Construct a 95% confidence interval for the population mean amount μ of decrease in weight over the two-month program.
(b) If you were to test H0 : μ = 17 versus H1 : μ ≠ 17 at a = 0.5, what would you conclude from your result in part (a)?
(c) Perform the hypothesis test indicated in part (b) and confirm your conclusion.

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Statistics Principles And Methods

ISBN: 9781119497110

8th Edition

Authors: Richard A. Johnson, Gouri K. Bhattacharyya

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