系数

t

P>t

95%的置信区间

X₁

−0.0023921

−0.51

0.619

[−0.0124707, 0.0076865]

X₂

0.0010188

0.92

0.375

[−0.001365, 0.0034026]

X₃

0.5215952

0.44

0.667

[−2.021382, 3.064572]

X₄

0.445436

15.20

0.000

[0.3825728, 0.5082992]

X₅

−2.340622

−3.28

0.005

[−3.869063, −0.8121817]

X₆

−0.0006001

−0.28

0.781

[−0.0051324, 0.0039322]

常数项

−558.7963

−4.59

0.000

[−819.7547, −297.8379]