Question

a group of students got the following scores in an achievement test:9,12,15,18,21,and 24.consider sample of size 3 that can be drawn from this population

Answer 1

Given population is-9,12,15,18,21,24

Sample size n=3,

Total number of sample formed = 19 and each of the sample mean is shown in the table below.

Mean of sample means $=\dfrac{310}{19}=16.31$