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Consider the multiple regression model with two regressors upper x 1 x1 and upper x 2 x2, where both variables are determinants of the dependent variable. you first regress y on upper x 1 x1 only a
Consider the multiple regression model with two regressors upper x 1 x1 and upper x 2 x2, where both variables are determinants of the dependent variable. you first regress y on upper x 1 x1 only and find no relationship. however, when regressing y on upper x 1 x1 and upper x 2 x2, the slope coefficient modifyingabove beta with caret 1 β1 changes by a large amount.