| Model 1 | Model 2 | Model 3 | |
|---|---|---|---|
| Displacement | -0.019 | ||
| (0.010) | |||
| Horsepower | -0.038* | ||
| (0.010) | |||
| Drive ratio | 2.236 | ||
| (1.736) | |||
| Weight (1000 lbs) | -3.138* | -2.800* | -4.892* |
| (1.344) | (0.942) | (0.879) | |
| Manual | 1.360 | 1.687 | 0.169 |
| (2.029) | (1.747) | (2.103) | |
| Gears | -1.050 | 0.403 | -1.085 |
| (1.222) | (1.065) | (1.313) | |
| (Intercept) | 37.993* | 32.556* | 31.718* |
| (5.051) | (4.672) | (7.820) | |
| Num.Obs. | 32 | 32 | 32 |
| R2 | 0.787 | 0.841 | 0.769 |
| R2 Adj. | 0.755 | 0.817 | 0.734 |
| AIC | 167.3 | 158.0 | 169.9 |
| BIC | 176.1 | 166.8 | 178.7 |
| Log.Lik. | -77.644 | -72.983 | -78.950 |
| F | 24.920 | 35.632 | 22.438 |
| * p < 0.05 |