3. The price (in thousands of dollars) and horsepower of a random sample of 93 cars was collected. A linear model was fit to predict a car's price based on its horse (software output below). Coefficients : Estimate Std. Error t value pr (>It1) (Intercept) -1. 3988 1. 8200 -0. 769 0. 444 Horsepower 0. 1454 0 . 0119 12 . 218