Table 2c.
Analysis of variance for central composite design.
| Source | Sum of Squares | df | Mean Square | F-Value | p-Value | |
|---|---|---|---|---|---|---|
| Model | 3.38E+06 | 9 | 3.75E+05 | 97.55 | <0.0001 | Significant |
| A-pH | 1.37E+05 | 1 | 1.37E+05 | 35.54 | 0.0001 | |
| B-Sucrose | 2.49E+05 | 1 | 2.49E+05 | 64.62 | <0.0001 | |
| C-Yeast extract | 1.18E+05 | 1 | 1.18E+05 | 30.64 | 0.0002 | |
| AB | 1.47E+06 | 1 | 1.47E+06 | 381.46 | <0.0001 | |
| AC | 3.04E+04 | 1 | 3.04E+04 | 7.89 | 0.0185 | |
| BC | 5.75E+05 | 1 | 5.75E+05 | 149.44 | <0.0001 | |
| A2 | 2.13E+05 | 1 | 2.13E+05 | 55.34 | <0.0001 | |
| B2 | 5.08E+05 | 1 | 5.08E+05 | 132.06 | <0.0001 | |
| C2 | 1.16E+04 | 1 | 1.16E+04 | 3.01 | 0.1136 | |
| Residual | 3.85E+04 | 10 | 3848.45 | |||
| Lack of fit | 29530.99 | 5 | 5906.2 | 3.3 | 0.1081 | Not significant |
| Pure error | 8.95E+03 | 5 | 1790.7 | |||
| Cor total | 3.42E+06 | 19 |