A national homehuilder builds singlefamily homes and condominiumstyle townhouses. The accompanying dataset provides information on the selling price, lot cost, and type of home for closings during one month. Complete parts a through c. a Click the icon to View the house sales data. a. Develop a. multiple regression model for sales price as a function of lot cost and type of home without any interaction term. Create a dummy variable named \"Townhouse", where it is equal to 1 when Type ="I'ownhouse" and 0 otherwise. Determine the coefcients of the regression equation. Sales Price = D +{|:|} - Lot ost+{D}- Townhouse {Type integers or decimals rounded to two decimal places as needed} b. What is the predicted sales price for either a singlefamily home or a townhouse with a lot cost of $23,200? I11 The predicted sales price for a single-famin home is $|:|. [Round to the nearest cent as needed.) I12 The predicted price for a townhouse is $|:. [Round to the nearest cent as needed.)