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Table 7

ANOVA and statistical response of fluoride biosorption study

SourceSum of SquaresdfMean SquareF Valuep-value Prob > F
Model 1737.99 14 124.14 22.49 <0.0001 significant 
A-IC 43.47 43.47 7.87 0.0133 
B-pH 553.92 553.92 100.34 <0.0001 
C-AD 45.1 45.1 8.17 0.012 
D-T 681.6 681.6 123.47 <0.0001 
AB 31.64 31.64 5.73 0.0302 
AC 0.14 0.14 0.025 0.8753 
AD 18.71 18.71 3.39 0.0855 
BC 7.43 7.43 1.35 0.2643 
BD 195.3 195.3 35.38 <0.0001 
CD 25.25 25.25 4.57 0.0493 
A^2 1.56 1.56 0.28 0.6027 
B^2 73.64 73.64 13.34 0.0024 
C^2 26.13 26.13 4.73 0.046 
D^2 24.7 24.7 4.47 0.0515 
Residual 82.8 15 5.52   
Lack of fit 82.8 10 8.28   
Pure error   
Cor total 1820.79 29    
SourceSum of SquaresdfMean SquareF Valuep-value Prob > F
Model 1737.99 14 124.14 22.49 <0.0001 significant 
A-IC 43.47 43.47 7.87 0.0133 
B-pH 553.92 553.92 100.34 <0.0001 
C-AD 45.1 45.1 8.17 0.012 
D-T 681.6 681.6 123.47 <0.0001 
AB 31.64 31.64 5.73 0.0302 
AC 0.14 0.14 0.025 0.8753 
AD 18.71 18.71 3.39 0.0855 
BC 7.43 7.43 1.35 0.2643 
BD 195.3 195.3 35.38 <0.0001 
CD 25.25 25.25 4.57 0.0493 
A^2 1.56 1.56 0.28 0.6027 
B^2 73.64 73.64 13.34 0.0024 
C^2 26.13 26.13 4.73 0.046 
D^2 24.7 24.7 4.47 0.0515 
Residual 82.8 15 5.52   
Lack of fit 82.8 10 8.28   
Pure error   
Cor total 1820.79 29    
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