Model R2 Adjusted R2 Predicted R2 SD %  CV Remark Response (Y1) Linear 0.5819 0.4854 0.2227 26.77 - - 2FI 0.6421 0.4274 -0.4315 28.24 - - Quadratic 0.9999 0.9998 0.9996 0.58 0.27 Suggested Response (Y2) Linear 0.6311 0.5460 0.2563 2.69 - - 2FI 0.6774 0.4839 -0.5391 2.86 - - Quadratic 0.9889 0.9746 0.9716 0.63 0.95 Suggested Response (Y3) Linear 0.9305 0.9145 0.8583 1.05 - - 2FI 0.9340 0.8944 0.6764 1.16 - - Quadratic 0.9976 0.9945 0.9709 0.26 1.41 Suggested

Table 4: Summary of results of regression analysis for response Y1, Y2, and Y3.