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 + ( + Aug +) Sep + (Oct +). Nov (Round to the nearest integer as needed.) Feb + () Mar + () Apr + ) May +().Jun +(). Jul . New Car Sales Data Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Print Year 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2222N N N N N M M M M m m m m 3333 2 2 2 3 56,079 52,177 50,087 48,513 2 49,278 3 Units 39,813 40,078 47,439 47,298 3 49,212 51,480 46,467 45,209 44,798 46,990 42,160 44,184 42,227 3 45,424 54,075 50,926 3 48,134 54,888 61,064 3 53,572 54,921 54,449 3 53,350 59,471 59,370 55,088 3 59,349 54,472 53,164 48,807 46,956 Done n I X