suppose the length of the pregnancy of a certain animal or approximately normally distributed with a mean = 282 days and standard deviation = 22 days a) what is the probability that a randomly selected pregnancy less less than 274 days? a2) interpret this probability. b) suppose a random sample of 18 pregnancies is obtained. describe the sampling distribution of the sample mean length of pregnancy. The sampling distribution of x is ______ with ux- =___ and ox- =____ c) what is the probability that a random sample of 18 pregnancies has a mean gestation period of 274 days or less? c2) interpret this probability. d) what is the probability that a random sample of 54 pregnancies has a mean gestation period of 274 days or less? d2) Interpret this probability. e) what might you conclude if a random sample of 54 pregnancy resulted in a mean gestation of 274 days or less? f) what is the probability a random sample of size 18 will have a mean gestation . Within eight days of the mean