Biostatistics

552 CHAPTER 11 REGRESSION ANALYSIS: SOME ADDITIONAL TECHNIQUES
TABLE 11.2.2 Data for Example 11.2.3
Measure of Effectiveness Age Method of Treatment
56 21 A
41 23 B
40 30 B
28 19 C
55 28 A
25 23 C
46 33 B
71 67 C
48 42 B
63 33 A
52 33 A
62 56 C
50 45 C
45 43 B
58 38 A
46 37 C
58 43 B
34 27 C
65 43 A
55 45 B
57 48 B
59 47 C
64 48 A
61 53 A
62 58 B
36 29 C
69 53 A
47 29 B
73 58 A
64 66 B
60 67 B
62 63 A
71 59 C
62 51 C
70 67 A
71 63 C
The three regression equations for the three treatments are as follows:
Treatment A (Equation 11.2.5)
^y j ¼ð6:21 þ 41:3Þþð1:03
¼ 47:51 þ :327x 1j
:703Þx 1j