| Model | Quadratic Sum | Degree of freedom | Mean Square | F | Significance | |
| 3 | analysis of regression | 660.302 | 3 | 220.101 | 33.901 | 0.001d |
| residual error | 32.462 | 5 | 6.492 |
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| |
| total | 692.764 | 8 |
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