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Derive the general formula for leverage in a regression model using a single binary covariate using the below formula? We have already encountered the formal

Derive the general formula for leverage in a regression model using a single binary covariate using the below formula?

We have already encountered the formal definition of leverage in the variance of the residuals: Var(e;) = o'(1 - hui); the quantity (Xi - X) 2 hii = Ek=1(Xk - X)2

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