A 99% confidence interval for a population mean based on a sample of size 64 is computed to be (16.3, 18.7). How large a
Posted: Sun Jul 10, 2022 10:50 am
A 99% confidence interval for a population mean based on a sample of size 64 is computed to be (16.3, 18.7). How large a sample is needed so that a 90% confidence interval will specify the mean to within ±0.5?