Estimate Std.

Error

t value

Pr(>|t|)

(Intercept)

30.150451

1.253435

24.054

<2e−16

mycyl

−3.133488

0.884613

−3.542

0.000445

disp

0.009615

0.007337

1.311

0.190772

hp

−0.067839

0.012571

−5.396

1.19e−07

poly(weight, 2)1

−77.039910

11.326679

−6.802

3.95e−11

poly(weight, 2)2

21.516735

4.377976

4.915

1.32e−06