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B. Construct a 99% confidence interval for the population mean 11. A college dean of students wishes to estimate the average number of hours students

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B. Construct a 99% confidence interval for the population mean 11. A college dean of students wishes to estimate the average number of hours students spend doing homework per week. The standard deviation from a previous study is hours. How large a sample must be selected if he wants to be 99% confident of finding whether the true mean differs from the sample mean by 1.5 hours? 12. Give the following definitions by your own words

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