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How many students should be included in the sample to be 99

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A study is being planned to estimate the mean number of semseter hours taken by students at a college. The population standared deviation is assumed to be 4.7 hours. How many students should be included in the sample to be 99% confident that the sample mean is within one semester hour of the population mean for all students at this college.

Reference no: EM13615722

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