| Estimate Std. | Error | t value | Pr(>|t|) |
(Intercept) | 38.8797135 | 3.0568097 | 12.719 | <2e−16 |
as.factor(cyl)4 | 7.2195952 | 2.1036081 | 3.432 | 0.000664 |
as.factor(cyl)5 | 9.2635725 | 3.1611670 | 2.930 | 0.003588 |
as.factor(cyl)6 | 3.4582042 | 2.3390418 | 1.478 | 0.140104 |
as.factor(cyl)8 | 6.0961268 | 2.7080015 | 2.251 | 0.024942 |
hp | −0.0673907 | 0.0163484 | −4.122 | 4.60e−05 |
disp | −0.0008322 | 0.0086455 | −0.096 | 0.923364 |
weight | −0.0043707 | 0.0007889 | −5.540 | 5.63e−08 |
acc | −0.0828389 | 0.1197356 | −0.692 | 0.489452 |