Estimate

Std. Error

t value

Pr(>|t|)

(Intercept)

−30.77739

794.23522

−0.039

0.969493

x₁

0.38146

0.19726

1.934

0.068169

x₂

−0.17567

0.19588

−0.897

0.381034

x₃

0.55509

0.12377

4.485

0.000254***

x₄

−0.42483

0.09619

−4.416

0.000296***

x₅

0.06265

0.03070

2.041

0.055440

x₆

−0.05819

0.02085

−2.792

0.011634*

x₇

0.01627

0.02593

0.627

0.537916