Table 4.

Regression coefficients estimate of the predicted quadratic polynomial model.

Factor	Coefficient Estimate	Standard Error
Constant	4.60	0.064
A	0.17	0.051
B	−0.24	0.051
C	0.14	0.051
AB	−0.31	0.071
AC	0.38	0.071
BC	−0.30	0.071
A2	−0.61	0.070
B2	−0.37	0.070
C2	−0.24	0.070