Table 3 ANOVA for quadratic model.
Source | Sum of Squares | df | Mean Square | F-value | p-value | |
|---|---|---|---|---|---|---|
Model | 3.775E + 06 | 9 | 4.194E + 05 | 632.37 | < 0.0001 | significant |
A-pH | 2.648E + 05 | 1 | 2.648E + 05 | 399.28 | < 0.0001 | |
B- H2O2 | 2.293E + 06 | 1 | 2.293E + 06 | 3457.45 | < 0.0001 | |
C-Fe2+ | 1.458E + 05 | 1 | 1.458E + 05 | 219.83 | < 0.0001 | |
AB | 3362.18 | 1 | 3362.18 | 5.07 | 0.0314 | |
AC | 3607.38 | 1 | 3607.38 | 5.44 | 0.0261 | |
BC | 6844.84 | 1 | 6844.84 | 10.32 | 0.0030 | |
A² | 274.25 | 1 | 274.25 | 0.4135 | 0.5248 | |
B² | 3.741E + 05 | 1 | 3.741E + 05 | 564.08 | < 0.0001 | |
C² | 22670.99 | 1 | 22670.99 | 34.18 | < 0.0001 | |
Residual | 21224.59 | 32 | 663.27 | |||
Lack of Fit | 21008.24 | 3 | 7002.75 | 938.66 | < 0.0001 | Not significant |
Pure Error | 216.35 | 29 | 7.46 | |||
Cor Total | 3.796E + 06 | 41 |
