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Table 6 ANOVA of the reduced quadratic model of oil yield from WO-RP

From: Response surface optimization of biodiesel yield from pre-treated waste oil of rendered pork from a food processing industry

SourceSum of squaresdfMean squareF valuep-value
Prob > F
Model131.77718.8248.23\(< 0.0001^{\text{a}}\)
A—methanol–oil ratio26.78126.7868.62\(< 0.0001^{\text{a}}\)
B—catalyst loading77.18177.18197.75\(< 0.0001^{\text{a}}\)
C—reaction time0.9610.962.46\(0.1427^{\text{b}}\)
AC6.5916.5916.88\(0.0014^{\text{a}}\)
BC5.8515.8514.98\(0.0022^{\text{a}}\)
\(A^{2}\)10.58110.5827.11\(0.0002^{\text{a}}\)
\(B^{2}\)6.2616.2616.04\(0.0017^{\text{a}}\)
Residual4.68120.39  
Lack of fit1.3470.190.29\(0.9327^{\text{b}}\)
\(R^{2} = 0.9657\)     
  1. aSignificant
  2. bNot significant