Consider the model Yi – β1Xi + ui, where the Xi and ui the are mutually independent i.i.d. random variables with finite fourth moment and E(ui)= 0.
(a)Let  1 denote the OLS estimator of β1. Show that  (  1- β1)=  (b)What is the mean and the variance of  ? Assuming that the Central Limit Theorem holds, what is its limiting distribution?
(c)Deduce the limiting distribution of  (  1 – β1)? State what theorems are necessary for your deduction.