A national baking company decided to test a new recipe for its doughnuts and the glaze it uses. Customers had the opportunity to sample the different combinations of whole weight flour or white flour with glaze sweetened by sugar or by artificial sweetener. The sales of each types are recorded at the test site for four days.

Sugar Artificial Sweetener Wheat 62 50 78 75 60 40 50 50 White 65 60 70 70 62 38 45 52 A. [2 marks] State the appropriate model for these data. B. [13.5 marks] Construct the ANOVA table. C. [8.5 marks] Assume all assumptions are valid and conduct, at a=0.05, all appropriate tests for the equality of the means