Question

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
 0.05, determine whether
differences among the treatment,
block, and interactive effects are
significant.