Consumer Reports tested 19 different brands and models of road, fitness, and comfort bikes. Road bikes are designed for long road trips; fitness bikes are designed for regular workouts or daily commuters; and comfort bikes are designed for leisure rides on typically flat roads. The data file Bikes show the type, weight (lb.), and price ($) for the 20 bicycles tested.

1. Develop an estimated regression equation that can be used to predict Price by using Type and Weight.
2. At the 0.05 level of significance, test for autocorrelation in the data.