Butler Trucking Company wants to reduce their Gasoline Consumption used during deliveries to their customers. They collected data on 300 driving assignments including miles driven, the time taken, how many deliveries the driver made during the assignment, how much gas was consumed and how long the total trip took. In addition they collected whether the assignment included travel on a congested highway or not. Use regression analysis and answer the questions below. Eliminate the variable causing problems and re-run the initial regression to provide better information to the company in their efforts to reduce gasoline consumption. Record the coefficients for each variable used.