系数^a

模型

未标准化系数

标准化系数

t

显著性

共线性统计

B

标准错误

Beta

容差

VIF

1

(常量)

−47495.741

15269.286

−3.111

0.002

wheelbase

122.617

100.465

0.092

1.220

0.224

0.136

7.341

Car length

−94.675

55.557

−0.146

−1.704

0.090

0.106

9.423

Car width

505.572

246.013

0.136

2.055

0.041

0.179

5.586

Car height

163.180

135.721

0.050

1.202

0.231

0.453

2.206

Curb weight

1.885

1.737

0.123

1.085

0.279

0.061

16.413

Engine size

117.346

13.837

0.612

8.481

0.000

0.150

6.659

Bore ratio

−1002.565

1195.798

−0.034

−0.838

0.403

0.475

2.104

stroke

−3034.606

778.604

−0.119

−3.897

0.000

0.836

1.196

Compression ratio

298.137

82.914

0.148

3.596

0.000

0.460

2.176

horsepower

30.809

16.216

0.153

1.900

0.059

0.121

8.248

Peak rpm

2.375

0.671

0.142

3.540

0.001

0.487

2.054

City mpg

−320.355

177.769

−0.262

−1.802

0.073

0.037

27.129

High way mpg

202.822

159.760

0.175

1.270

0.206

0.041

24.277