| Model | Quadratic Sum | Degree of freedom | Mean Square | F | Significance | |
| 1 | analysis of regression | 661.563 | 4 | 165.391 | 21.203 | 0.006b |
| residual error | 31.201 | 4 | 7.800 |
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| |
| total | 692.764 | 8 |
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