For sample sizes greater than 30,the sampling distribution of the mean is approximately normally distributed:
A)regardless of the shape of the population.
B)only if the shape of the population is symmetric.
C)only if the population is normally distributed.
D)None of these choices.

Question

Quizplus · Accepted Answer

This is due to the Central Limit Theorem, which states that the sampling distribution of the mean will be approximately normally distributed regardless of the population distribution, given a sufficiently large sample size (usually considered to be greater than 30).

For Sample Sizes Greater Than 30,the Sampling Distribution of the Mean