Question

Samples of size 25 are selected from a population with a mean of 40 and a standard deviation of 7.5. What is the standard error of the sampling distribution of sample means?

A. 0.3
B. 1.5
C. 7.5
D. 8

Answer 1

Standard deviation

Step-by-step explanation:

Given n=25

mean= 40

standard deviation= 7.5

Standard error = 7.5/√25=1.5