Source |
Coefficient of estimation |
Sum of squares |
DF |
Mean squares |
f-value |
p-value
prob>f |
Model |
30.83 |
455.26 |
9 |
50.58 |
6.27 |
0.0003* |
X1 |
1.03 |
29.19 |
1 |
29.19 |
3.62 |
0.0717 |
X2 |
2.83 |
218.24 |
1 |
218.24 |
27.04 |
<0.0001 |
X3 |
2.08 |
118.54 |
1 |
118.54 |
14.69 |
0.0010 |
X12 |
-0.27 |
0.90 |
1 |
0.90 |
0.11 |
0.7422 |
X12 |
-1.76 |
37.42 |
1 |
37.42 |
4.64 |
0.0437 |
X12 |
-0.021 |
5.559E-003 |
1 |
5.559E-003 |
6.886E-004 |
0.9793 |
X1 X2 |
0.90 |
12.96 |
1 |
12.96 |
1.61 |
0.2197 |
X1 X3 |
0.19 |
0.60 |
1 |
0.60 |
0.075 |
0.7875 |
X2 X3 |
-0.86 |
11.75 |
1 |
11.75 |
1.46 |
0.2418 |
Residual |
|
161.44 |
20 |
8.07 |
|
|
Lack of Fit |
|
106.27 |
5 |
21.25 |
5.78 |
0.0036* |
Pure error |
|
55.17 |
15 |
3.68 |
|
|
Corrected Total |
|
616.69 |
29 |
|
|
|
Std. Dev |
|
2.84 |
|
|
|
|
R2 |
|
0.7382 |
|
|
|
|
Adj R2 |
|
0.6204 |
|
|
|
|
Pred. R2 |
|
0.4315 |
|
|
|
|
Adeq. Precision |
|
8.447 |
|
|
|
|
CV% |
|
9.81 |
|
|
|
|
DF – Degrees of Freedom, *- 5% level of significant |