A half-century ago, the mean height of women in a particular country in their 20s was 64.4 inches. Assume that the heights of today's women in their 20s are approximately normally distributed with a standard deviation of 1.81 inches. If the mean height today is the same as that of a half-century ago, what percentage of all samples of 21 of today's women in their 20s have mean heights of at least 65.43 inches?
A half-century ago, the mean height of women in a particular country in their 20s was 64.4 inches. Assume that the heights of today's women in their 20s are approximately normally distributed with a standard deviation of 1.81 inches. If the mean height today is the same as that of a half-century ago, what percentage of all samples of 21 of today's women in their 20s have mean heights of at least 65.43 inches?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 24HP
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A half-century ago, the mean height of women in a particular country in their 20s was
normally distributed with a standard deviation of
64.4
inches. Assume that the heights of today's women in their 20s are approximately 1.81
inches. If the mean height today is the same as that of a half-century ago, what percentage of all samples of
21
of today's women in their 20s have mean heights of at least
65.43
inches?Expert Solution
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