Mathematics, 25.02.2021 07:30 gwoodbyrne
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 3 ounces
the sample mean? The standard deviation of the birth weights is known to be 9 ounces.
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Answers: 3
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