A professor at a local community college is interested in studying the amount of hours that a college student works per week. If the professor would like to construct a 99% confidence interval for the mean hours worked per week by college students within 1.4 hours, what sample size would the professor need? A previous study found that the standard deviation for the amount of hours students work per week was 3.19 hours.

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A professor at a local community college is interested in studying the amount of hours that a college student works per week. If
the professor would like to construct a 99% confidence interval for the mean hours worked per week by college students within
1.4 hours, what sample size would the professor need? A previous study found that the standard deviation for the amount of
hours students work per week was 3.19 hours.
Transcribed Image Text:A professor at a local community college is interested in studying the amount of hours that a college student works per week. If the professor would like to construct a 99% confidence interval for the mean hours worked per week by college students within 1.4 hours, what sample size would the professor need? A previous study found that the standard deviation for the amount of hours students work per week was 3.19 hours.
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