Refer to Examples 10.4–10.6. Suppose the USGA wants to compare the mean distances associated with the four brands of golf balls struck by a driver, but wishes to employ human golfers rather than the robot Iron Byron. Assume that 10 balls of each brand are to be utilized in the experiment. LO4

a. Explain how a completely randomized design could be employed.

b. Explain how a randomized block design could be employed.

c. Which design is likely to provide more information about the differences among the brand mean distances?