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Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean u = 158 days and standard deviation o = 9 days. Complete parts (a) through (f) below. . . . exactly 155 days. B. If 100 independent random samples of size n = 18 pregnancies were obtained from this population, we would expect 8 sample(s) to have a sample mean of 155 days or less. ts C. If 100 independent random samples of size n = 18 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of rity 155 days or more. (d) What is the probability that a random sample of 64 pregnancies has a mean gestation period of 155 days or less? The probability that the mean of a random sample of 64 pregnancies is less than 155 days is approximately 0.0038 (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.) O A. If 100 independent random samples of size n = 64 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of nten exactly 155 days. Incorrect: O B. If 100 independent random samples of size n = 64 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of 155 days or more. O C. If 100 independent random samples of size n = 64 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of (/4) acces 155 days or less. a Lib Help m