Two investigators are interested in studying the health of men 18-24 years old in Baltimore City. Investigator A plans to take a random sample of 100 men age 18-24 from Baltimore City. Investigator B will take a random sample of 1,000 such men. Both investigators will measure the waist size of men in their samples.

Which investigator will get a smaller (in value) sample standard deviation(s) for the waist sizes of the men in his/her sample?

a. Investigator A

b. Investigator B

c. It is not possible to predict which investigator will get a smaller sample standard deviation.