A large health maintenance organization is interested in the prescribing patterns of physicians. Suppose that we selected a random sample of three patients treated for four diagnoses by three physicians. Physician Diagnosis A B C 1 11,7,9 8,6,7 5,4,7 2 14,10,11 10,9,8 6,8,7 3 4,5,3 5,5,6 3,4,2 4 10,9,7 6,7,4 5,6,3 If a= 0.05, determine whether differences among the treatment, block, and interactive effects are significant