A nurse at a local hospital interested in estimating the birth weight of infants. How large a sample must she select if she desires to be 98% confident that the true mean is within 4 ounces of the sample mean? The population standard deviation of the birth weights is known to be 5 ounces. OA. 3 OB. 2 OC. 8

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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 98% confident that the true mean is within 4 ounces of the sample mean? The population standard deviation of
the birth weights is known to be 5 ounces.
O A. 3
O O
B. 2
C. 8
OD. 9
Transcribed Image Text: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 98% confident that the true mean is within 4 ounces of the sample mean? The population standard deviation of the birth weights is known to be 5 ounces. O A. 3 O O B. 2 C. 8 OD. 9
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