申論題

(ii) There is a simple regression model  with the Gauss-Markov Assumption of Simple Linear Regression (SLR).1 through SLR.5. The OLS estimators and are the unbiased for the respective population parameters α₀ and α₁  . Let be the parameter obtained from the assumption of a zero intercept.

(1) Find in terms of and α₁ (3%). Verify that is unbias for α₁ when = 0 . (2%)