請問各位大神,我用frontier跑SFA,要怎麼知道變數是否具統計顯著性?我跑的結果如下,
the final mle estimates are :
coefficient standard-error t-ratio
beta 0 0.31089882E+01 0.18943491E+00 0.16411908E+02
beta 1 -0.72174149E+00 0.63549050E-01 -0.11357235E+02
beta 2 -0.13972722E+00 0.37888099E-01 -0.36878919E+01
beta 3 -0.28189744E+00 0.47766917E-01 -0.59015205E+01
delta 0 0.16662824E+00 0.10542734E+01 0.15805030E+00
delta 1 0.12568483E+00 0.78915246E+00 0.15926558E+00
delta 2 -0.13865984E+01 0.13261071E+01 -0.10456156E+01
delta 3 -0.45018727E+01 0.15139173E+01 -0.29736582E+01
delta 4 0.44932809E+01 0.63679147E+00 0.70561262E+01
sigma-squared 0.15489455E+00 0.20111516E-01 0.77017839E+01
gamma 0.76591359E+00 0.83558052E-01 0.91662451E+01
log likelihood function = -0.85960343E+02
LR test of the one-sided error = 0.98593111E+02
with number of restrictions = 6
[note that this statistic has a mixed chi-square distribution]