Essay
After running the regression Y = β0 + β1X1 + β2X2 + β3X3 + β4X4,and examining a plot of the residuals,you have reason to suspect that there is heteroscedasticity in your model.Assume that the heteroscedasticity is directly proportional to the square of the expected value of the dependent variable.How might you estimate your model correcting for this heteroscedasticity?
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