Answer
Three samples are as fol: -
7 40 7 19 29 29 33 Mean: 32.8
26 5 33 18 37 20 40 Mean: 35.8
38 21 25 38 15 12 40 Mean: 37.8
Mean of the population is 20
Means of the samples are greater then mean of the population
Work Step by Step
Generate three samples using MS Excel
Calculate mean of each
Calculate mean of the population (0-40)
Compare results