Predictor Coefficient P
Constant 22.029 0.000
X1 -6.643 0.000
X2 -5.994 0.000
X3 -2.468 0.033
X12 5.160 0.012
X22 0.094 0.960
X32 -0.599 0.749
X1X2 0.220 0.868
X1X3 0.522 0.693
X2X3 -0.564 0.670
Table 9: Regression coefficient of full second order model for shrinkage ratio.