Question

A statistics professor wants to estimate the average number of hours per week that students in statistics classes spend (outside class) working on statistics. The professor wants to estimate the number of hours to within one hour, with 95% confidence. The professor thinks that the range of hours is probably from 1 to 10. How large a sample should she take? The professor knows she should be cautious about interpreting the results of any such survey. Why?


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  • CreatedJuly 12, 2015
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