Table 7. Analysis of Variance of RSM for Basic Orange 2 (BO2).
| source | DF | adjusted sum of square | adjusted mean square | F-value | P-value | R2 | R2-adj | R2-pre |
|---|---|---|---|---|---|---|---|---|
| model | 9 | 3102.74 | 385.86 | 16.83 | 0.0001 | 95.4% | 91.2% | 86.1% |
| linear | 3 | 2809.21 | 802.4 | 36.16 | 0.0001 | |||
| X1 | 1 | 786.21 | 786.21 | 33.73 | 0.0001 | |||
| X2 | 1 | 1214.8 | 1214.8 | 54.5 | 0.0001 | |||
| X3 | 1 | 640.12 | 640.12 | 29.25 | 0.0001 | |||
| X1X1 | 1 | 140.70 | 140.70 | 8.38 | 0.0380 | |||
| X2X2 | 1 | 185.80 | 185.8 0 | 9.93 | 0.0220 | |||
| X3X3 | 1 | 102.72 | 102.72 | 4.57 | 0.0580 | |||
| X1X2 | 1 | 115.50 | 115.75 | 5.7 | 0.0510 | |||
| X1X3 | 1 | 12.20 | 12.2 0 | 0.55 | 0.5100 | |||
| X2X3 | 1 | 65.60 | 65.6 0 | 3.62 | 0.1310 | |||
| error | 10 | 176.0 | 17.10 | |||||
| lack of fit | 5 | 39.00 | 7.000 | 1.1 | 0.2300 | |||
| pure error | 5 | 136.2 | 27.30 | |||||
| total | 19 | 686.4 |