ad hoe procedures This is a continuation of the above problem 3 where we examine ad hoc procedures for estimating the population parameters. For simplicity, we coneentrate on the case where the second independent variable is ignored.

a] Take the first two sample obselVations (t = 1,2). Set up two equations in two unknowns and solve for the slope and intercept. Compare this with your regression in part [b] of the earlier problem.

b] Now seleet two sample obselVations by taking those with the largest and the smallest realization of the dependent variable (YJ. Use these two obselVations to determine the slope and intereept. You might enjoy footnote 4.

e] Finally, now seleet two sample obselVations by taking those with the largest and the smallest realizations of the independent variable (xIJ. Use these to determine the slope and intereept.

d] Comment on your various quiek and dirty procedures for estimating the slope and intereept of a linear model.AppendixLO1