Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean p=170 days and standard deviation o = 15 days. Complete pa 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 34 pregnancies has a mean gestation period of 164 days or less? The probability that the mean of a random sample of 34 pregnancies is less than 164 days is approximately 0099 (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= 34 pregnancies were obtained from this population, we would expect 1 sample(s) to have a sample mean of 164 days O B. If 100 independent random samples of size n= 34 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of 164 day O C. If 100 independent random samples of size n= 34 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of exactly (e) What might you conclude if a random sample of 34 pregnancies resulted in a mean gestation period of 164 days or less? This result would be unusual, so the sample likely came from a population whose mean gestation period is greater than 170 days (f) What is the probability a random sample of size 20 will have a mean gestation period within 10 days of the mean? The probability that a random sample of size 20 will have a mean gestation period within 10 days of the mean is (Round to four decimal places as needed.)

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Just last pt, part f
Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean p= 170 days and standard deviation o = 15 days. Complete pan
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 34 pregnancies has a mean gestation period of 164 days or less?
The probability that the mean of a random sample of 34 pregnancies is less than 164 days is approximately .0099. (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= 34 pregnancies were obtained from this population, we would expect 1 sample(s) to have a sample mean of 164 days
O B. If 100 independent random samples of size n = 34 pregnancies were obtained from this population, we would expect
sample(s) to have a sample mean of 164 days
O C. If 100 independent random samples of size n= 34 pregnancies were obtained from this population, we would expect
sample(s) to have a sample mean of exactly 16
(e) What might you conclude if a random sample of 34 pregnancies resulted in a mean gestation period of 164 days or less?
This result would be unusual, so the sample likely came from a population whose mean gestation period is greater than 170 days.
(f) What is the probability a random sample of size 20 will have a mean gestation period within 10 days of the mean?
The probability that a random sample of size 20 will have a mean gestation period within 10 days of the mean is
(Round to four decimal places as needed.)
Vi
Vi
M,
(1,4)
Mare
Ask my instructor
O Type here to search
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Transcribed Image Text:Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean p= 170 days and standard deviation o = 15 days. Complete pan 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 34 pregnancies has a mean gestation period of 164 days or less? The probability that the mean of a random sample of 34 pregnancies is less than 164 days is approximately .0099. (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= 34 pregnancies were obtained from this population, we would expect 1 sample(s) to have a sample mean of 164 days O B. If 100 independent random samples of size n = 34 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of 164 days O C. If 100 independent random samples of size n= 34 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of exactly 16 (e) What might you conclude if a random sample of 34 pregnancies resulted in a mean gestation period of 164 days or less? This result would be unusual, so the sample likely came from a population whose mean gestation period is greater than 170 days. (f) What is the probability a random sample of size 20 will have a mean gestation period within 10 days of the mean? The probability that a random sample of size 20 will have a mean gestation period within 10 days of the mean is (Round to four decimal places as needed.) Vi Vi M, (1,4) Mare Ask my instructor O Type here to search 73°F Mostly cloud acer 立
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