A simple random sample of 100 observations was taken from a large population. The sample mean and the standard deviation were determined to be 50 and 5, respectively. The standard error of the mean is
A) 0.5.
B) 2.
C) 5.
D) 10.

Question

Quizplus · Accepted Answer

The standard error of the mean is calculated as the standard deviation divided by the square root of the sample size, which is 5 / sqrt(100) = 5 / 10 = 0.5.

A Simple Random Sample of 100 Observations Was Taken from a Large