Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean p= 195 days and standard deviation o=18 days. Complete parts (a) through (f) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). C (a) What is the probability that a randomly selected pregnancy lasts less than 188 days? The probability that a randomly selected pregnancy lasts less than 188 days is approximately 0.3486 - (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.) OA. If 100 pregnant individuals were selected independently from this population, we would expect pregnancies to last more than 188 days. pregnancies to last exactly 188 days. O B. If 100 pregnant individuals were selected independently from this population, we would expect C. If 100 pregnant individuals were selected independently from this population, we would expect 35 pregnancies to last less than 188 days. (b) Suppose a random sample of 18 pregnancies is obtained. Describe the sampling distribution of the sample mean length of pregnancies. The sampling distribution of x is with = and ox (Round to four decimal places as needed.)

MATLAB: An Introduction with Applications
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Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean μ = 195 days and standard deviation o18 days. Complete parts (a) through (f) below.
Click here to view the standard normal distribution table (page 1).
Click here to view the standard normal distribution table (page 2).
(a) What is the probability that a randomly selected pregnancy lasts less than 188 days?
The probability that a randomly selected pregnancy lasts less than 188 days is approximately 0.3486. (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 pregnant individuals were selected independently from this population, we would expect
pregnancies to last more than 188 days.
pregnancies to last exactly 188 days.
O B. If 100 pregnant individuals were selected independently from this population, we would expect
C. If 100 pregnant individuals were selected independently from this population, we would expect 35 pregnancies to last less than 188 days.
(b) Suppose a random sample of 18 pregnancies is obtained. Describe the sampling distribution of the sample mean length of pregnancies.
The sampling distribution of X is
and o
with =
(Round to four decimal places as needed.)
Transcribed Image Text:Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean μ = 195 days and standard deviation o18 days. Complete parts (a) through (f) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) What is the probability that a randomly selected pregnancy lasts less than 188 days? The probability that a randomly selected pregnancy lasts less than 188 days is approximately 0.3486. (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 pregnant individuals were selected independently from this population, we would expect pregnancies to last more than 188 days. pregnancies to last exactly 188 days. O B. If 100 pregnant individuals were selected independently from this population, we would expect C. If 100 pregnant individuals were selected independently from this population, we would expect 35 pregnancies to last less than 188 days. (b) Suppose a random sample of 18 pregnancies is obtained. Describe the sampling distribution of the sample mean length of pregnancies. The sampling distribution of X is and o with = (Round to four decimal places as needed.)
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