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8 Question: Roger Gallagher owns a used car lot that deals solely used Corvettes. He wants to develop a regression model to help predict the price he can expect to receive for the cars he owns. He collected the data found in the file regression data describing the mileage, model year, presence of a T-top, and selling price of a number of cars ha has sold in recent months. Let Y present the selling price X1, the mileage X2, the model year, X3, the presence (or absence) of a T-top. If Roger wants to use a simple linear regression function to estimate the selling price of a car, which X variable do you recommend he use?

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Question: Roger Gallagher owns a used car lot that deals solely used Corvettes. He wants to develop a regression model to help predict the price he can expect to receive for the cars he owns. He collected the data found in the file regression data describing the mileage, model year, presence of a T-top, and selling price of a number of cars ha has sold in recent months. Let Y present the selling price X1, the mileage X2, the model year, X3, the presence (or absence) of a T-top.
If Roger wants to use a simple linear regression function to estimate the selling price of a car, which X variable do you recommend he use?

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