Solve the problem.
-Assume that women's heights are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches. If 90 women are randomly selected, find the probability that they have a mean height between 62.9 inches and 64.0 inches.
A)0.1739
B)0.7248
C)0.0424
D)0.9318

Question

Quizplus · Accepted Answer

The sampling distribution of the sample mean is normally distributed with mean 63.6 and standard deviation 2.5/sqrt(90). Using the standard normal distribution, the probability of the sample mean being between 62.9 and 64.0 is approximately 0.9318.

Solve the Problem. -Assume That Women's Heights Are Normally Distributed with a Mean