A major car magazine has recently collected data on 30 leading cars in the U.S. market. It is interested in building a multiple regression model to explain the variation in highway miles. The following correlation matrix has been computed from the data collected: If the independent variables, curb weight, cylinders, and horsepower are used together in a multiple regression model, there may be a potential problem with multicollinearity since horsepower and cylinders are highly correlated.
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