A nurse at a local hospital is interested in estimating the birth weight of infants. How large a sample must she select if she

Question

A nurse at a local hospital is interested in estimating the birth weight
of infants. How large a sample must she select if she desires to be
99% confident that the true mean is within 4 ounces of the sample
mean? The standard deviation of the birth weights is known to be 9
ounces.

Kunduz · Accepted Answer

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