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In 1955, Life Magazine reported that the 27 year-old mother of three worked, on average, an 75 hour week. Recently, many groups have been studying whether or not the women's movement has, in fact, resulted in an increase in the average work week for women (combining employment and at-home work). Suppose a study was done to determine if the mean work week has increased. 85 women were surveyed with the following results. The sample mean was 80; the sample standard deviation was ten. Does it appear that the mean work week has increased for women at the 5% level?

In 1955, Life Magazine reported that the 27 year-old mother of three worked, on average, an 75 hour week. Recently, many groups have been studying whether or not the women's movement has, in fact, resulted in an increase in the average work week for women (combining employment and at-home work). Suppose a study was done to determine if the mean work week has increased. 85 women were surveyed with the following results. The sample mean was 80; the sample standard deviation was ten. Does it appear that the mean work week has increased for women at the 5% level?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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In 1955, Life Magazine reported that the 27 year-old mother of three worked, on average, an 75 hour week. Recently, many groups have been studying whether or not the women's movement has, in fact, resulted in an increase in the average work week for women (combining employment and at-home work). Suppose a study was done to determine if the mean work week has increased. 85 women were surveyed with the following results. The sample mean was 80; the sample standard deviation was ten. Does it appear that the mean work week has increased for women at the 5% level?
Transcribed Image Text:In 1955, Life Magazine reported that the 27 year-old mother of three worked, on average, an 75 hour week. Recently, many groups have been studying whether or not the women's movement has, in fact, resulted in an increase in the average work week for women (combining employment and at-home work). Suppose a study was done to determine if the mean work week has increased. 85 women were surveyed with the following results. The sample mean was 80; the sample standard deviation was ten. Does it appear that the mean work week has increased for women at the 5% level?
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