| Source |
Coefficient of estimation |
Sum of squares |
DF |
Mean squares |
f-value |
p-value
prob>f |
| Model |
14.60 |
602.54 |
9 |
66.95 |
9.91 |
<0.0001* |
| X1 |
3.3 |
297.15 |
1 |
297.15 |
44.00 |
<0.0001 |
| X2 |
1.24 |
41.91 |
1 |
41.91 |
6.21 |
0.0216 |
| X3 |
2.23 |
135.27 |
1 |
135.27 |
20.03 |
0.0002 |
| X12 |
0.10 |
0.12 |
1 |
0.12 |
0.018 |
0.8947 |
| X12 |
-1.27 |
19.40 |
1 |
19.40 |
2.87 |
0.1056 |
| X12 |
0.50 |
3.04 |
1 |
3.04 |
0.45 |
0.5098 |
| X1 X2 |
0.93 |
13.87 |
1 |
13.87 |
2.05 |
0.1673 |
| X1 X3 |
1.30 |
27.09 |
1 |
27.09 |
4.01 |
0.0589 |
| X2 X3 |
-1.40 |
31.53 |
1 |
31.53 |
4.67 |
0.0430 |
| Residual |
|
135.06 |
20 |
6.75 |
|
|
| Lack of Fit |
|
43.35 |
5 |
9.07 |
1.52 |
0.2433 NS |
| Pure error |
|
89.71 |
15 |
5.98 |
|
|
| Corrected Total |
|
737.60 |
29 |
|
|
|
| Std. Dev |
|
2.60 |
|
|
|
|
| R2 |
|
0.8169 |
|
|
|
|
| Adj R2 |
|
0.7345 |
|
|
|
|
| Pred. R2 |
|
0.6081 |
|
|
|
|
| Adeq. Precision |
|
9.014 |
|
|
|
|
| CV% |
|
18.57 |
|
|
|
|
DF – Degrees of Freedom, NS-non significant, *- 5% level of significant |
