2. Design a marketing experiment that will determine which formulation customers prefer. Your experimental design and format should consist of the following parts:

a. Independent variables: The things that you changed.

b. Dependent variable(s): What changed as a result of the manipulated variables, such as rating the formulation of cheese and price.

c. Extraneous variables: Everything else that did not change during the experiment, such as location of the test, the crust, and so forth.

d. Control group: Did you use one? Why or why not?