Table 1.
ANOVA for Quadratic model.
| Source | Sum of Squares | df | Mean Square | F-value | P-value | Remark | Response |
|---|---|---|---|---|---|---|---|
| Model | 5684.32 | 5 | 1136.86 | 4.90 | 0.0302 | Significant | Color |
| A-PH | 1856.55 | 1 | 1856.55 | 8.00 | 0.0255 | ||
| B-Dosage | 550.84 | 1 | 550.84 | 2.37 | 0.1673 | ||
| AB | 669.70 | 1 | 669.70 | 2.89 | 0.1331 | ||
| A2 | 1485.28 | 1 | 1485.28 | 6.40 | 0.0392 | ||
| B2 | 2598.83 | 1 | 2598.83 | 11.20 | 0.0123 | ||
| Residual | 1624.05 | 7 | 232.01 | ||||
| Cor Total | 7308.37 | 12 | |||||
| Model | 1348.29 | 5 | 269.66 | 23.01 | 0.0003 | Significant | Turbidity |
| A-PH | 62.02 | 1 | 62.02 | 5.29 | 0.0550 | ||
| B-Dosage | 371.51 | 1 | 371.51 | 31.70 | 0.0008 | ||
| AB | 35.72 | 1 | 35.72 | 3.05 | 0.1243 | ||
| A2 | 132.85 | 1 | 132.85 | 11.33 | 0.0120 | ||
| B2 | 559.29 | 1 | 559.29 | 47.72 | 0.0002 | ||
| Residual | 82.05 | 7 | 11.72 | ||||
| Cor Total | 1430.33 | 12 | |||||
| Model | 298.36 | 5 | 59.67 | 129.37 | <0.0001 | Significant | COD |
| A-PH | 11.04 | 1 | 11.04 | 23.93 | 0.0018 | ||
| B-Dosage | 235.02 | 1 | 235.02 | 509.52 | <0.0001 | ||
| AB | 1.48 | 1 | 1.48 | 3.22 | 0.1160 | ||
| A2 | 18.20 | 1 | 18.20 | 39.45 | 0.0004 | ||
| B2 | 14.29 | 1 | 14.29 | 30.98 | 0.0008 | ||
| Residual | 3.23 | 7 | 0.4613 | ||||
| Cor Total | 301.59 | 12 |