Suppose that you want to determine whether there is a difference between the distances traveled by two different brands of golf balls. You use the 30 people on your golf league to participate in the study.

a. Describe, in detail, the design of an experiment that does not utilize pairing.
b. Next, describe, in detail, the design of an experiment that does utilize pairing.
c. Which study design (a) or (b) do you think is a better study design for the purpose of this study or does it not matter? Explain your reasoning.