Source of variation Sum of squares (SS) Degree of freedom (d.f.) Mean squares (MS) F-value Probe > F
Regression 129.2127 9 14.35696 20.62065 0.000026
Residual 6.9624 10 0.69624    
Total 136.1751 19      
R²= 0.94887155; Adjusted R²= 0.90285595
Table 4: ANOVA for the entire quadratic model