Researchers have studied the role that the age or workers has in determining the hours per...

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Researchers have studied the role that the age or workers has in determining the hours per...

Researchers have studied the role that the age or workers has in determining the hours per month spent on personal tasks. A sample of 1,686 adults were observed for one month. The data are:

Age Group 18-24 25-44 45-64

Mean 4.17 4.04 4.31

Std Dev 0.75 0.81 0.82

N 241 768 677

Construct a 95 percent confidence interval for the mean hours spent on personal tasks for 45-64 year olds.

math Statistics-And-Probability

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45-64 yeav elol. NY 4.31ナ0.06)77 4 248 4372 4、248く篿んく4.372

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Researchers studied the role that the age of workers has in determining the hours per month...

Researchers studied the role that the age of workers has in determining the hours per month spent on personal tasks. A sample of 1,686 adults were observed for one month. The data follow. AGE GROUP 18-24 25-44 45-64 Mean 4.17 4.04 4.31 Std Dev 0.75 0.81 0.82 N 241 768 677 Construct a 93 percent confidence interval for the mean hours spent on personal tasks for 45- to 64-year-olds. [4.27, 4.35] [4.26, 4.36] [4.28, 4.34] [4.25, 4.37] [2.83, 5.79]

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Researchers studied the role that the age of workers has in determining the hours per month...

Researchers studied the role that the age of workers has in determining the hours per month spent on personal tasks. A sample of 1,686 adults were observed for one month. The data follow. AGE GROUP 18-24 25-44 45-64 Mean 4.17 4.04 4.31 Std Dev 0.75 0.81 0.82 N 241 768 677 Construct a 93 percent confidence interval for the mean hours spent on personal tasks for 45- to 64-year-olds. [4.27, 4.35] [4.26, 4.36] [4.28, 4.34] [4.25, 4.37] [2.83, 5.79]

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