2. Rob is in charge of waxing the floor at the local mall. He wants to test a new brand
of floor wax called Squeaky Clean. Rob waxes 20 floor tiles with Squeaky Clean and
20 tiles with the original wax brand. After one week he counts the number of
scratches on the floor.
a. Independent Variable:
b. Dependent Variable:
C. Control Group:
d. Constant: