Research Article
Optimization of Sunflower Oil Transesterification Process Using Sodium Methoxide
Table 3
The regression coefficients (), adjusted , ratio and value of the final reduced model.
| Parameter | Model term | Coefficient estimate | ratio | value |
| | Intercept | 96.386 | 214122 | 0.000 | Linear | | | | | | |
−0.79
| 24.51 | 0.000 | | | 0.080 | 0.25 | 0.625a | | | 0.733 | 20.87 | 0.001 | Quadratic | | | | | | | — | — | 0.532a | | | 0.52 | 16.24 | 0.001 | | | — | — | 0.446a | Interaction | | | | | | | — | — | 0.175a | | | — | — | 0.459a | | | — | — | 0.550a | | — | 0.88 | — | — | (adj) | — | 0.83 | — | — | Regression (-ratio; value) | — | — | 239.32 | 0.000 |
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aNonsignificant effect ().
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