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The length of human pregnancies is approximately normal with mean =266 days and standard deviation = 16 days. Complete parts (a) through (f). Click
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). } (d) What is the probability that a random sample of 103 pregnancies has a mean gestation period of 262 days or less? The probability that the mean of a random sample of 103 pregnancies is less than 262 days is 0.0055 (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.) A. If 100 independent random samples of size n = 103 pregnancies were obtained from this population, we would expect 1 sample(s) to have a sample mean of 262 less. B. If 100 independent random samples of size n = 103 pregnancies were obtained from this population, we would expect days. OC. If 100 independent random samples of size n = 103 pregnancies were obtained from this population, we would expect more. (e) What might you conclude if a random sample of 103 pregnancies resulted in a mean gestation period of 262 days or less? This result would be unusual, so the sample likely came from a population whose mean gestation period is less than (f) What is the probability a random sample of size 17 will have a mean gestation period within 12 days of the mean? The probability that a random sample of size 17 will have a mean gestation period within 12 days of the mean is 0.9382 (Round to four decimal places as needed.) sample(s) to have a sample mean of exa sample(s) to have a sample mean of 262 266 days.
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