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Mathematics, 24.06.2021 16:20 lakiprincess
A university 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 6.2 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
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A university dean of students wishes to estimate the average number of hours students spend doing ho...
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