Show transcribed image text Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean Î¼-299 days and standard deviation Ïƒ = 24 days (a) What is the probability that a randomly selected pregnancy lasts less than 290 days? The probability that a randomly selected pregnancy lasts less than 290 days is approximately. (Round to four decimal places as needed.) (b) What is the probability that a random sample of 19 pregnancies has a mean gestation period of 290 days or less? The probability that the mean of a a random sample of 19 pregnancies is less than 290 days is approximately(Round to four decimal places as needed.) (c) What is the probability that a random sample of 45 pregnancies has a mean gestation period of 290 days or less? probability that the meano ess than 290 days is approximately (Round to four decimal places a

Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean Î¼-299 days and standard deviation Ïƒ = 24 days (a) What is the probability that a randomly selected pregnancy lasts less than 290 days? The probability that a randomly selected pregnancy lasts less than 290 days is approximately. (Round to four decimal places as needed.) (b) What is the probability that a random sample of 19 pregnancies has a mean gestation period of 290 days or less? The probability that the mean of a a random sample of 19 pregnancies is less than 290 days is approximately(Round to four decimal places as needed.) (c) What is the probability that a random sample of 45 pregnancies has a mean gestation period of 290 days or less? probability that the meano ess than 290 days is approximately (Round to four decimal places a