Source Coefficient Estimate Sum of squares Df F-value P-value Prob>F
Intercept(β0) 0.30        
Model   0.28 5 3.61 0.0620**
X11) -0.010 0.00062 1 0.04 0.8471**
X22) -0.010 0.23 1 4.53 0.0708**
X1 X23) -0.0055 0.000121 1 0.000823 0.9320**
X124) 0.078 0.017 1 1.08 0.3323**
X225) 0.21 0.13 1 8.17 0.0244*
*Significant; ** not significant; lack of fit is significant at P value >0.05
Table 4: ANOVA of BI for the infrared dried tomato slices by response surface quadratic model.