The Sampling Distribution of the Sample Mean Is Shown $\sigma = 300$

Multiple Choice

The sampling distribution of the sample mean is shown. If the sample size is n = 36, what is the standarddeviation of the population from which the sample was drawn? Round to the nearest thousandth whereappropriate.

A) $\sigma = 300$
B) $\sigma = 1800$
C) $\sigma = 8.333$
D) $\sigma = 1.389$