Table 2 Analysis of CCD.
Coefficients | Standard error | t stat | p-value | |
|---|---|---|---|---|
Intercept | −0.99905 | 0.663842 | −1.50495 | 0.147966 |
X1 | 0.125009 | 0.031665 | 3.947866 | 0.000795 |
X2 | 0.225509 | 0.249465 | 0.903968 | 0.376773 |
X12 | 0.000656 | 0.000436 | 1.502415 | 0.148615 |
X22 | 0.039457 | 0.027926 | 1.412894 | 0.173061 |
X1X2 | −0.03913 | 0.008355 | −4.6829 | 0.000143 |