tobit模型不符合同方差和正态性,所以用clad估计,估计结果怎么看参数是否显著?observed是不是估计的参数? 求大牛解答 急!!!!!
Variable | Reps Observed Bias Std. Err. [95% Conf. Interval]
---------+-------------------------------------------------------------------
x | 200 33.33333 -1.910464 20.09559 -6.294305 72.96097 (N)
| -4.166667 60.55556 (P)
| -12.5 56.25 (BC)
---------+-------------------------------------------------------------------
a | 200 38.88889 .9964477 15.31977 8.678972 69.09881 (N)
| 1.02e-13 66.28788 (P)
| 5.79e-15 62.5 (BC)
---------+-------------------------------------------------------------------
b | 200 -5.555556 16.06602 29.21801 -63.17219 52.06108 (N)
| -37.5 67.42424 (P)
| -50 50 (BC)
---------+-------------------------------------------------------------------
c | 200 -11.11111 5.516012 20.3649 -51.2698 29.04758 (N)
| -47.30114 33.33333 (P)
| -50 25 (BC)
---------+-------------------------------------------------------------------
d | 200 -4.41e-14 -9.725954 24.54216 -48.39608 48.39608 (N)
| -61.45833 35.41667 (P)
| -19.23077 60 (BC)
---------+-------------------------------------------------------------------
const | 200 272.2222 -32.72356 69.61554 134.9434 409.501 (N)
| 112.1429 339.5833 (P)
| 143.75 350 (BC)