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:
Based on this information,if we test using a 0.05 level of significance,the critical value for testing whether any of the independent variables are significantly correlated with the dependent variable is t = 2.0484.
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