Antony hospital conducted a study on the risk of having a stroke. The sample included people 55 and older and data on cholesterol and being a smoker was taken.The table below shows coefficients after regression.
The variable Smokes is defined equal to 1 If the person smokes, zero otherwise.
The regression equation when the person smokes is.....
|
Coefficientsa |
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|
Model |
Unstandardized Coefficients |
Standardized Coefficients |
t |
Sig. |
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|
B |
Std. Error |
Beta |
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|
1 |
(Constant) |
-91.759 |
15.223 |
-6.028 |
.000 |
|
|
Age |
1.077 |
..166 |
.697 |
6.488 |
.000 |
|
|
Cholesterol |
.252 |
.045 |
.553 |
5.568 |
.000 |
|
|
Smokes |
8.740 |
3.001 |
.302 |
2.912 |
.011 |
|
|
a. Dependent Variable: Risk |
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A- Yhat = -91.76 + 1.08X1 +0.25X2 + 8.74X3
B- Yhat = -91.76 + 1.08X1 +0.25X2
C- Yhat = -83.02 + 1.08X1 +0.25X2 + 8.74X3
D- Yhat = -83.02 + 1.08X1 +0.25X2
If Smokes = 1, then:
Yhat = -91.759 + 1.08X1 + 0.25X2 + 8.74*1
Yhat = -83.02 + 1.08X1 + 0.25X2
Option D is correct.
Antony hospital conducted a study on the risk of having a stroke. The sample included people...