A leading car manufacturer tracks the data of its used cars for resale. The Excel file Car
Question:
A leading car manufacturer tracks the data of its used cars for resale. The Excel file Car Sales contains information on the selling price of the car, fuel type (diesel or petrol), horsepower (HP), and manufacture year.
a. Develop a multiple linear regression model for the selling price as a function of fuel type and HP without any interaction term.
b. Determine if any interaction exists between fuel type and HP and find the best model.
c. What is the predicted price for either a petrol or diesel car with a horsepower of 69?
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