Variable | Coefficient | Std. Error | t-Statistic | Prob. |
C | −280.3828 | 192.5934 | −1.455828 | 0.1467 |
GRADF_01^2 | 0.641366 | 0.433589 | 1.479201 | 0.1403 |
GRADF_02^2 | 0.073352 | 0.061296 | 1.196679 | 0.2325 |