Table 4.
Analysis of variance table for RSM-CCD
| Source | Sum of squares | df | Mean square | F-value | p-value (prob > F) |
|---|---|---|---|---|---|
| Model | 581.1992 | 14 | 41.51423 | 13.11533 | < 0.0001 |
| A—pH value | 33.51662 | 1 | 33.51662 | 10.5887 | 0.0053 |
| B—Mannose conc. | 134.8032 | 1 | 134.8032 | 42.58754 | < 0.0001 |
| C—Meat extract conc. | 119.2925 | 1 | 119.2925 | 37.68734 | < 0.0001 |
| D—Incubation time | 183.5619 | 1 | 183.5619 | 57.99156 | < 0.0001 |
| AB | 1.352597 | 1 | 1.352597 | 0.427317 | 0.5232 |
| AC | 5.675014 | 1 | 5.675014 | 1.792872 | 0.2005 |
| AD | 13.98608 | 1 | 13.98608 | 4.418535 | 0.0529 |
| BC | 14.70656 | 1 | 14.70656 | 4.646151 | 0.0478 |
| BD | 28.32565 | 1 | 28.32565 | 8.948746 | 0.0091 |
| CD | 25.02249 | 1 | 25.02249 | 7.905199 | 0.0131 |
| A2 | 5.970958 | 1 | 5.970958 | 1.886368 | 0.1898 |
| B2 | 1.022902 | 1 | 1.022902 | 0.323159 | 0.5781 |
| C2 | 17.43682 | 1 | 17.43682 | 5.508706 | 0.0331 |
| D2 | 0.643106 | 1 | 0.643106 | 0.203172 | 0.6586 |
| Residual | 47.47981 | 15 | 3.16532 | ||
| Lack of fit | 45.21154 | 10 | 4.521154 | 9.966101 | 0.0102 |
| Pure error | 2.268266 | 5 | 0.453653 | ||
| Cor total | 628.6791 | 29 |
Std. dev., 1.78; R-squared, 0.924; adj R-squared, 0.854; C.V.%, 11.932; adeq precision, 14.014