Conduct a Multiple Regression Analysis. Be sure to state your dependent and independent variables. Use Stepwise Regression to eliminate non-significant variables and state your final model. Conduct a forecast using this final model and reasonable values for the remaining independent variables.

This is a database about US Top Vehicle Sales Figures By Model in Q3 2019. We have these variables as follow:

- Q3 sales 2019: Vehicle Sales of each model in the third quarter of 2019

- Q3 sales 2018: Vehicle Sales of each model in the third quarter of 2018

- Number of cylinders:

- Segment: classify vehicles by different lines based on the classification standards of the American market.

- Brand of vehicle.

- Manufacturer of vehicle.