What is the relationship between the standard deviation of the sample mean and the population standard deviation?

Question

Quizplus · Accepted Answer

The standard deviation of the sample mean (also called standard error of the mean) is equal to the population standard deviation divided by the square root of the sample size. Therefore, as the sample size increases, the standard error of the mean decreases. However, the population standard deviation remains unchanged regardless of the sample size.

What Is the Relationship Between the Standard Deviation of the Sample