Estimate

Std. Error

t value

Pr(>|t|)

(Intercept)

−49.225666

15.446142

−3.187

0.0015**

X1

0.126639

0.005268

24.039

<2e−16***

X2

0.108608

0.006117

17.755

<2e−16***

X3

0.095798

0.007087

13.517

<2e−16***

X4

−0.116527

0.023477

−4.963

8.77e−07***

X5

0.320649

0.062235

5.152

3.38e−07***

X6

0.024671

0.005396

4.572

5.73e−06***

X7

0.032837

0.006165

5.327

1.36e−07***

X8

0.137415

0.004471

30.736

<2e−16***