The length of human pregnancies is approximately normal with

Last updated: 3/29/2023

The length of human pregnancies is approximately normal with mean 266 days and standard deviation 16 days Complete parts a through f Click here to view the standard normal distribution table page 1 Click here to view the standard normal distribution table page 2 The probability that the mean of a random sample of 48 pregnancies is less than 260 days is 0 0047 Round to four decimal places as needed Interpret this probability Select the correct choice below and fill in the answer box within your choice Round to the nearest integer as needed OA If 100 independent random samples of size n 48 pregnancies were obtained from this population we would expect sample s to have a sample mean of exactly 260 days OB If 100 independent random samples of size n 48 pregnancies were obtained from this population we would expect sample s to have a sample mean of 260 days or less OC If 100 independent random samples of size n 48 pregnancies were obtained from this population we