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Table 6 Analysis of Variance (ANOVA) for the quadratic model

From: Photo-biohydrogen production potential of Rhodobacter capsulatus- PK from wheat straw

Source SS DF MS F value Probability (P) > F
model 97366.4 9 10818.4 93.93 < 0.0001
Residual (error) 1151.80 10 115.18   
Lack of fit 1142.97 5 228.59 129.39  
Pure error 8.83 5 1.77   
Total 98518.2 19    
  1. Coefficient of determination (R2) = 0.98; adjusted R2 = 0.97; coefficient of variation (CV) = 1.77%; SS, sum of squares; DF, degree of freedom; MS, mean square.