Homework SourseA study is conducted in patients with HIV The primary outcom
A study is conducted in patients with HIV. The primary outcome is CD4 cell count, which is the measure of the stage of the disease. A regression analysis is performed relating CD4 count to the duration of HIV in years. The computer output appears below:
The fitted regression line is:
A: Y= 511.91 - 30.87X
B: Y = -30.87 + 511.91X
C: Y = 511.91 - 308.7X
D: Y = 136.72 - 29.34X
| Parameter | STD Error | T Value | PR > T | |
| Intercept | 511.91 | 70.3212 | 136.72 | 0.0052 |
| Duration | -30.87 | 14.35 | -29.34 | 0.0038 |
Solution
Look at the parameter in the table, equation is y = intercept parameter + slope (or duration) parameter * x, thus the answer is:
A: Y= 511.91 - 30.87X
