Difficult# MPG and Horsepower

APSTAT-1YWEYK

A consumer advocate wants to determine the relationship between cars’ miles per gallon (mpg) and horsepower.

A sample of $15$ car models from the current year was selected. The regression analysis of the data resulted in the following output:

Coefficients | Standard Error | t-Stat | P-Value | |
---|---|---|---|---|

Intercept | 36.93884096 | 2.139220436 | 17.26743 | 2.4035E-10 |

Horsepower | -0.051610508 | 0.009635294 | -5.3564 | 0.00013055 |

Based on this information, which of the following statements is true?