1) Suppose the lengths of the pregnancies of a certain animal are approximately normally

profiletutor4helpyou
question.docx
Home>Mathematics homework help>Numerical analysis homework help>1) Suppose the lengths of the pregnancies of a certain animal are approximately normally

1) Suppose the lengths of the pregnancies of a certain animal are approximately normally distributes with the mean µ = 296 days and standard deviation σ = 26 days. a) What is the probability that a random selected pregnancy lasts less than 288 days? The probability that a randomly selected pregnancy lasts less than 288 days is approximately ___________? (round to four decimals as needed) b) What is the probability that a random sample of 29 pregnancies has a mean gestation period of 288 days or less? The probability that the mean of a random sample of 29 pregnancies is less that 288 days is approximately _______? (round to four decimals as needed) c) What is the probability that a random sample of 57 pregnancies has a mean gestation period of 288 days or less? The probability that the mean of a random sample of 57 pregnancies is less that 288 days is approximately ________? (round to four decimals as needed)