A company that manufactures golf balls produces a
new type of ball that is supposed to travel significantly
farther than the company's previous golf ball. To
determine this, 40 new-style golf balls and 40 original-
style golf balls are randomly selected from the
company's production line on a specific day. The balls
are then placed in a bag and shaken. A golf pro then
selects a ball and hits it using a driver. The distance
the ball travels is then measured. The bag is shaken
again, and the golf pro selects another ball and hits it
with the same driver. He continues this procedure until
all 80 of the golf balls are hit.
Which of the following is a benefit of having replication
in the experiment?
Repeating the experiment will allow the company to
compare the distances traveled by the new type of
golf ball from both experiments.
Having a large number of each type of golf ball will
allow for a good comparison of the differences in
distances traveled for the two types of balls.
o Having a large number of each type of golf ball will
not allow for a good comparison of the differences in
distances traveled for the two types of balls.
Replication is not needed in this experiment. The
golf pro hitting one ball of each type is enough to
determine if the difference in distance is due to the
type of ball.