1.40 Skillbuilder Applet Exercise simulates sampling from a population of college students.

a. Take 10 samples of size 4 and keep track of the sample averages of hours per week that students study. Find the range of these averages by subtracting the lowest average from the highest average.

b. Take 10 samples of size 10 and keep track of the sample averages of hours per week that students study. Find the range of these averages by subtracting the lowest average from the highest average.

c. Which sample size demonstrated more variability?

d. If the population average is about 15 hours per week, which sample size demonstrated this most accurately? Why?

Transcribed Image Text:

Sample Size n = 4 On=10 New Sample Sample average is hours