The accompanying dataset shows the monthly number of new car sales in the last three years Develop a multiple regression model with categorical variables that incorporate seasonality for forecasting sales. Click the icon to view the new car sales data. Develop a multiple regression model with categorical variables that incorporate seasonality for forecasting sales, where December is the reference month Units+Year+)-Jan+() Feb+()-Mar+)-Apr +()-May + ()-Jun + () Jul+ () Aug+)-Sep + Oct Nov (Round to the nearest integer as needed.)