Question: Suppose that we add the Dodge Viper to the data in Problem 21 in Section 4.2. A Dodge Viper weighs 3425 pounds and gets 11

Suppose that we add the Dodge Viper to the data in Problem 21 in Section 4.2.

A Dodge Viper weighs 3425 pounds and gets 11 miles per gallon. Compute the coefï¬cient of determination of the expanded data set. What effect does the addition of the Viper to the data set have on R2?

Weight Miles pei Gallon, y 17 16 25 19 21 23 17 24 19 17 18 Car Buick Lucerne Cadllac CTS Chevrolet Cobalt Chevrolet Impala Chrysler Sebring Sedan Dodge Caliber Dodge Charger Ford Focus Ford Mustang Lincoln MKZ Mercury Sable (pounds), x 3735 3860 2721 3555 3319 2966 3727 2605 3473 3796 3310

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