Response 1 | MB adsorption | ||||||
ANOVA for selected factorial model |
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Sum of | Mean F | p-value | Source | Squaresdf Square Value Prob > F | |||
Model 332.63 | 5 | 66.53 | 532.2 | 0.0019 | significant | ||
A-Contact Time 78.12 | 1 | 78.12 | 625 | 0.0016 | |||
B-Dosage 153.12 | 1 | 153.12 | 1225 | 0.0008 | |||
C-pH 45.12 | 1 | 45.12 | 361 | 0.0028 | |||
AC 28.12 | 1 | 28.12 | 225 | 0.0044 | |||
BC 28.13 | 1 | 28.13 | 225 | 0.0044 | |||
Residual 0.25 | 2 | 0.12 | |||||
Cor Total 332.88 | 7 | ||||||
Std. Dev. | 0.35 | R-Squared | 0.9992 | ||||
Mean | 84.88 | Adj R-Squared | 0.9974 | ||||
C.V. % | 0.42 | Pred R-Squared | 0.988 | ||||
PRESS | 4 | Adeq Precision | 64.503 | ||||
The “Pred R-Squared” of 0.9880 is in reasonable agreement with the “Adj R-Squared” of 0.9974. | |||||||
Coefficient | Standard | 95% CI | 95% CI | ||||
Factor Estimate | df | Error | Low | High | VIF | ||
Intercept 84.88 | 1 | 0.12 | 84.34 | 85.41 | |||
A-Contact Time 3.12 | 1 | 0.12 | 2.59 | 3.66 | 1 | ||
B-Dosage 4.38 | 1 | 0.12 | 3.84 | 4.91 | 1 | ||
C-pH 2.37 | 1 | 0.12 | 1.84 | 2.91 | 1 | ||
AC-1.87 | 1 | 0.12 | −2.41 | 1.34 | 1 | ||
BC 1.88 | 1 | 0.12 | 1.34 | 2.41 | 1 | ||