Table 2.
ANOVA of the fitted quadratic polynomial model.
| Source | Sum of Squares | Degrees of Freedom | Mean Square | F-Value | p-Value Probability > F |
|---|---|---|---|---|---|
| Model | 122.09 | 9 | 13.57 | 19.56 | <0.0001 |
| X 1 | 2.53 | 1 | 2.53 | 3.65 | 0.0853 |
| X 2 | 81.39 | 1 | 81.39 | 117.37 | <0.0001 |
| X 3 | 28.23 | 1 | 28.23 | 40.70 | <0.0001 |
| X 1 X 2 | 1.80 | 1 | 1.80 | 2.60 | 0.1378 |
| X1X3 | 3.67 | 1 | 3.67 | 5.30 | 0.0442 |
| X2X3 | 3.35 | 1 | 3.35 | 4.84 | 0.0525 |
| X 1 2 | 0.09 | 1 | 0.09 | 0.13 | 0.7289 |
| X 2 2 | 0.06 | 1 | 0.06 | 0.09 | 0.7671 |
| X 3 2 | 0.94 | 1 | 0.94 | 1.35 | 0.2721 |
| Residual | 6.93 | 10 | 0.69 | ||
| Lack of Fit | 4.26 | 5 | 0.85 | 1.60 | 0.3102 |
| Pure Error | 2.67 | 5 | 0.53 | ||
| Cor Total | 129.03 | 19 | |||
| R 2 | 0.9463 | ||||
| R 2 adjusted | 0.8979 | ||||
| R 2 pred | 0.7000 |