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Minimum sample size needed to estimate the population

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Reference no: EM132465113

A researcher wishes to estimate the average number of hours that high school students spend on facebook each day. A margin of error of 0.22 hours is desired. Past studies suggest a population standard deviation of 2.1 hours is reasonable, estimate the minimum sample size needed to estimate the population mean with the desired accuracy.

Reference no: EM132465113

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