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 98% confident that the true mean is within 3 ounces of the sample mean? The standard deviation s is known to be 6 ounces. (References: example 6 page 316, end of section exercises 58 - 62 pages 321 - 322) (5 points)