1. 2004 Car Prices Scott Ning Sean Meade

2. Predict vehicle retail price Sports Car Sport Utility Vehicle Wagon Minivan Pickup All-Wheel Drive Rear-Wheel Drive Suggested Retail Price, what the manufacturer thinks the vehicle is worth, including adequate profit for the automaker and the dealer ($ Dollars) Dealer Cost (or "invoice price"), what the dealership pays the manufacturer ($) Engine Size (liters) Number of Cylinders Horsepower City Miles Per Gallon Highway Miles Per Gallon Weight (Pounds) Wheel Base (inches) Length (inches) Width (inches)

3. Correlation SportsCar SportsUtility Wagon Minivan Pickup All-WheelDrive Price 0.38186 0.04193 -0.05565 -0.05679 -0.09837 0.09999 Rear-WheelDrive DealerCost EngineSize Cylinders HP Price 0.40359 0.99913 0.57175 0.62876 0.82695 city_mpg mpg pounds wheel length width Price -0.46113 -0.42940 0.44934 0.15035 0.21489 0.32811

4. Original Equation Price = -2441.74290 + (394.86928*sc) + (300.23290*su) - (98.50362*wagon) + (315.97925*minivan) + (0*pickup) + (250.71560*awd) + (150.49711*rwd) + (1.08958*dealerCost) + (193.70722*size) – (31.82502*cylinders) + (1.03945*hp) – (12.17910*cityMPG) + (35.98411*highwayMPG) – (0.03931*pounds) - (46.61526*wheel) + (15.35560*length) + (41.49026*width)

5. Backward Elimination Price = -2341.72702 + (322.32671*sc) + (1.09095*dealerCost) + (182.18777*size) – (30.47070*wheel) + (70.47453*width)

6. R-Squared Selection

7. Goodness of Fit F-Test  F-value is very high  P-value is less than 0.0001  Therefore, test value is significant Model has predictive value

8. Normality Data is heavily left-skewed Assumption of normality not met

9. VIF

10. Which car type? Sports Sports Wagon Mini Pickup car Util Van

11. Which car type? Sports Sports Wagon Mini Pickup car Util Van