On what bases might such an estimate be made

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1. "If we want to cut the maximum likely error in half, we'll have to double the sample size." Is this statement correct? Why or why not?

2. In determining the necessary sample size in making an interval estimate for a population mean, it is necessary to first make an estimate of the population standard deviation. On what bases might such an estimate be made?

Reference no: EM131405261

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