Table 4 ANOVA for current density of oxidation reaction of glycerol
Source | Sum of squares | DOF | Mean square | F value | Probability > F |
|---|---|---|---|---|---|
Model | 38,727.25 | 9 | 4303.03 | 77.52 | < 0.0001a |
X1: NaOH concentration | 1579.95 | 1 | 1579.95 | 28.46 | 0.0003 |
X2: Temperature | 6558.19 | 1 | 6558.19 | 118.14 | < 0.0001 |
X3: Catalyst Loading | 1073.79 | 1 | 1073.79 | 19.34 | 0.0013 |
X1 2 | 416.27 | 1 | 416.27 | 7.50 | 0.0209 |
X2 2 | 12,479.20 | 1 | 12,479.20 | 224.80 | < 0.0001 |
X3 2 | 19,128.37 | 1 | 19,128.37 | 344.59 | < 0.0001 |
X1X2 | 663.94 | 1 | 663.94 | 11.96 | 0.0061 |
X1X3 | 4.84 | 1 | 4.84 | 0.087 | 0.7739 |
X2X3 | 18.18 | 1 | 18.18 | 0.33 | 0.5798 |
Residual | 555.11 | 10 | 55.51 | ||
Lack of fit | 439.61 | 5 | 87.92 | 3.81 | 0.0844b |
Pure Error | 115.50 | 5 | 23.10 | ||
Cor Total | 39,282.36 | 19 | |||
R 2 | 0.9859 | ||||
Adj R 2 | 0.9732 | ||||
Pred R 2 | 0.9089 |