Quadratic model R2 Adjusted R2                Predicted R2 SD % CV
Response (Y1) 0.9898 0.9898 0.9768 0.027 5.58
Regression equations of the fitted quadratic model
Y1=0.34+0.044X1+0.056X2+0.22X3+0.038X1X2+0.035X1X3+0.032X2X3+0.011X1²+0.090X2² +0.024X3²
Table 3: Summary of results of regression analysis for response Y1 for fitting to
quadratic model.