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O A. If 100 independent random samples of size n= 23 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of 279 days or more. O B. If 100 independent random samples of size n= 23 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of exactly 279 days. O C. If 100 independent random samples of size n= 23 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of 279 days or less.

O A. If 100 independent random samples of size n= 23 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of 279 days or more. O B. If 100 independent random samples of size n= 23 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of exactly 279 days. O C. If 100 independent random samples of size n= 23 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of 279 days or less.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean = 286 days and standard deviation o = 23 days. Complete parts (a) through (f) below. O A. If 100 independent random samples of size n= 23 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of 279 days or more. O B. If 100 independent random samples of size n = 23 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of exactly 279 days. O C. If 100 independent random samples of size n= 23 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of 279 days or less.
Transcribed Image Text:Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean = 286 days and standard deviation o = 23 days. Complete parts (a) through (f) below. O A. If 100 independent random samples of size n= 23 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of 279 days or more. O B. If 100 independent random samples of size n = 23 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of exactly 279 days. O C. If 100 independent random samples of size n= 23 pregnancies were obtained from this population, we would expect sample(s) to have a sample mean of 279 days or less.
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