A nurse at a local hospital is interested in estimating the birth weight of infants. How large a sample must she select
Posted: Mon Nov 15, 2021 11:11 am
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 90% 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 A 5 B. 4 C: 2 D3