变量

系数

T统计量

相伴概率P

Ct

0.1578

0.5212

0.3810

X

0.3047

3.2742

0.0103

X × Z1t

0.2169

3.1097

0.0110

X × Z2t

0.1837

2.3737

0.0127

X × Z3t

0.1346

1.6638

0.0306

X × Z4t

0.1561

1.9770

0.0267

R2 = 0.7153, P = 0, F = 835.480