Table 3.
Analysis of variance (ANOVA) for the model
| Regression | DF | R2 | F-values | P-values |
| Linear | 3 | 0.1685 | 10.036 | 0.0023 |
| Quadratic | 3 | 0.7479 | 44.542 | 0.0000 |
| Cross product | 3 | 0.0277 | 1.647 | 0.2405 |
| Total model | 9 | 0.9440 | 18.742 | 0.0000 |
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