Biostatistics

REVIEW QUESTIONS AND EXERCISES 527
Y Weight (kg)
X 1
Total Cholesterol
(mg/100 ml)
X 2
Triglyceride
(mg/100 ml)
76 302 139
97 336 101
83 220 57
52 300 56
70 382 113
67 379 42
75 331 84
78 332 186
70 426 164
99 399 205
75 279 230
78 332 186
70 410 160
77 389 153
76 302 139
Compute the multiple correlation coefficient and test for significance at the .05 level.
8. In a study of the relationship between creatinine excretion, height, and weight, the data shown in the
following table were collected on 20 infant males:
Infant
Creatinine
Excretion
(mg/day)
Y
Weight (kg)
X 1
Height (cm)
X 2
1 100 9 72
2 115 10 76
3 52 6 59
4 85 8 68
5 135 10 60
6 58 5 58
7 90 8 70
8 60 7 65
9 45 4 54
10 125 11 83
11 86 7 64
12 80 7 66
13 65 6 61
14 95 8 66
15 25 5 57
16 125 11 81
17 40 5 59
(Continued )