What percentage of individual men have weights between 164 lb and 176 lb? If samples of 100

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What percentage of individual men have weights between 164 lb and 176 lb? If samples of 100 men are randomly selected and the mean weight is computed for each sample, what percentage of sample means is between 164 lb and 176 lb?
Assume that weights of men are normally distributed with a mean of 170 lb and a standard deviation of 30 lb (approximate values based on data from the National Health and Nutrition Examination Survey).
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Statistical Reasoning for Everyday Life

ISBN: 978-0321817624

4th edition

Authors: Jeff Bennett, Bill Briggs, Mario F. Triola

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