Source Sum of Squares df Mean Square F Value P Value Prob<F Model 1415.36 5 283.07 89.23 <0.0001 significant. A-temp 30.31 1 30.31 9.55 0.0175 B-substrate 29.64 1 29.64 9.34 0.0184 AB 0.56 1 0.56 0.18 0.6863 A2 1236.33 1 1236.33 389.73 <0.0001 B2 236.55 1 236.55 74.57 <0.0001 Residual 22.21 7 3.17   Lack of Fit 22.21 3 7.40   Pure Error 0.000 4 0.000   Core Total 1437.57 12

Table 6: Analysis of variance of quadratic model (Partial sum of squares type III).