Question: An experiment is conducted to determine the optimal time and temperature combination for baking a cake. The response variable of interest is taste. Four batches of cake will be baked separately at each combination of baking times (25 and 30 minutes) and temperature settings (275°F, 300°F, and 325°F).
(a) What are the experimental units?
(b) What are the factors in this experiment?
(c) State the levels of each factor.
(d) List all the treatments in this experiment.
(e) Is the response variable qualitative or quantitative?