A nutritionist records the time to eat an evening meal, at a student cafeteria, for 64 students.

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A nutritionist records the time to eat an evening meal, at a student cafeteria, for 64 students. She obtains X̅ = 36.2 and s = 5.6 minutes and reports that the 95% confidence interval for the mean time to eat is

or (30.79, 41.61)
(a) Is this statement correct?
(b) Does the interval (30 .79, 41.6 1) cover the true mean? Explain.

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Statistics Principles And Methods

ISBN: 9781119497110

8th Edition

Authors: Richard A. Johnson, Gouri K. Bhattacharyya

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