系数

标准误差

t

P > t

95%的置信区间

X₂

0.0004458

0.0001145

3.89

0.001

[0.0002042, 0.0006874]

X₄

0.4401673

0.0151092

29.13

0.000

[0.4082896, 0.4720449]

X₅

−2.497468

0.6053578

−4.13

0.001

[−3.774661, −1.220274]

常数项

−496.2091

20.72

−23.95

0.000

[−539.9245, −452.4937]