n = 100

n = 300

n = 500

接受率

0.704

0.565

0.464

偏差

MSE

偏差

MSE

偏差

MSE

${\beta }_1$

0.002186

0.121372

−0.001465

0.069440

0.001543

0.053608

${\beta }_2$

0.000469

0.146966

−0.000642

0.077224

−0.001522

0.060419

${\beta }_3$

−0.000153

0.142709

−0.000771

0.075833

−0.001034

0.059508

${\beta }_4$

−0.004215

0.118435

0.000095

0.069156

0.001937

0.051630