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Waist size: According to the National Health Statistics Reports, a sample of 783 men aged 20 29 years had a

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Waist size: According to the National Health Statistics Reports, a sample of 783 men aged 20– 29 years had a mean waist size of 36.9 inches with a standard deviation of 8.8 inches.
a. Construct a 95% confidence interval for the mean waist size.
b. The results of another study suggest that the mean waist size for men aged 30– 39 is 38.7 inches. Based on the confidence interval, is it reasonable to believe that the mean waist size for men aged 20– 29 may be 38.7 inches? Explain.

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A 36 3 37 5 B No because …View the full answer


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Elementary Statisitcs

Elementary Statisitcs

ISBN: 978-1259345296

2nd edition

Authors: Barry Monk

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Question Posted: September 23, 2015 05:08:26
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