Question

Suppose you know that a population standard deviation for a given measure is 18. For a sample of 169 subjects who have taken this measure, would would the standard error of the mean be?

Answer 1

Solution :

Given that,

Population standard deviation = $\sigma$ =18

Sample size = n = 169

Standard error = ( $\sigma$ /$\sqrt$n)

= 18 /$\sqrt$169

= 1.3846

Standard error of the mean is = 1.3846