Sum of   Mean F p-value  
Source          Squares df       Square               Value Prob> F  
Model 150.53 5 30.11 482.22 < 0.0001 significant
A-Amplitude 82.67 1 82.67 1324.11 < 0.0001  
B-time 27.88 1 27.88 446.54 < 0.0001  
AB 0.88 1 0.88 14.06 0.0019  
A^2 18.97 1 18.97 303.84 < 0.0001  
B^2 32.96 1 32.96 527.91 < 0.0001  
Residual 0.94 15 0.062      
Lack of Fit 0.15 3 0.05 0.77 0.5332        not significant
Pure Error 0.79 12 0.065      
Cor Total 151.47 20        
Table 2: Analysis of variance (ANOVA) and coefficients of the final regression equation.