Table 3.
Analysis of variance applied to the regression model used for the CA concentration (R2 = 0.99).
| Source | Sum of squares | Degrees of freedom | Mean of square | F-value | Prob>F | Remarks |
|---|---|---|---|---|---|---|
| Model | 191287.8 | 5 | 38257.6 | 3499.7 | 0.000000 | Significant |
| +b1 | 129675.7 | 1 | 129675.7 | 121571.0 | 0.000000 | Significant |
| b11 | 52286.9 | 1 | 52286.9 | 49019.0 | 0.000000 | Significant |
| #b2 | 9175.8 | 1 | 9175.8 | 8602.3 | 0.000000 | Significant |
| b22 | 876.7 | 1 | 876.7 | 821.9 | 0.000001 | Significant |
| b12 | 4.0 | 1 | 4.0 | 3.7 | 0.110567 | Not Significant |
| Residual | 87.5 | 8 | 10.9 | |||
| Lack of fit | 82.1 | 3 | 27.4 | 25.7 | 0.001830 | Significant |
| Pure error | 5.3 | 5 | 1.1 | |||
| Total | 191375.2 | 13 |
Independent variables:
+
1 = SF concentration;
#
2 = Temperature.