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Table 3 ANOVA results for the CCD

From: Application of response surface methodology for color removing from dyeing effluent using de-oiled activated algal biomass

Source Sum of squares df Mean square F value Prob > F  
Model 1356.87 4 339.22 109.66 < 0.0001 s
D 876.20 1 876.20 283.25 < 0.0001 s
P 8.93 1 8.93 2.89 0.1099 e
T 125.17 1 125.17 40.46 < 0.0001 s
P2 346.56 1 346.56 112.03 < 0.0001 s
Residual 46.40 15 3.09    
Lack of fit 37.69 10 3.77 2.16 0.2042 e
Pure error 8.71 5 1.74    
  1. s Significant, e Nonsignificant