Question

A population has a standard deviation of 11. What is the approximate standard error of the mean for a sample size of 150?

Answer 1

the approximate standard error is 0.90

Explanation:

The computation of the approximate standard error is shown below:

As we know that

Standard error is

= Standard deviation ÷ √mean

= 11 ÷ √150

= 11 ÷ 12.247

= 0.90

Hence, the approximate standard error is 0.90