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Mathematics, 21.04.2021 21:40 tikirawallace

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 describes the benefit of using
control in this experiment?
Controlling the type of golf club used and having the
same golf pro hit the ball eliminates the need to have a
control group.
Controlling the type of golf club used and having the
same golf pro hit the ball that may influence the
response variable eliminates variability in the
response variable.
Controlling the type of golf club used and having the
same golf pro hit the ball that may influence the
response variable reduces variability in the response
variable.
Controlling the type of golf club used and having the
same golf pro hit the ball means the differences
observed in the response variable can be attributed to
those variables that were controlled.

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