연세대 계량경제학 족보 econo1 fall final exam

The weight of each question is in square bracket. Good luck!
1. [30 points] About the Weak Law of Large Numbers (WLLN).
(i) State clearly what is the WLLN.
(ii) Prove the WLLN
(iii) Explain why the WLLN is important when studying the OLS estimator. (You don’t have to prove anything here. Just explain!)

2. [30 points] About the White test for heteroscedasticity.
(i) State clearly how to implement the White test.
(ii) Supp

The weight of each question is in square bracket. Good luck!
1. [30 points] About the Weak Law of Large Numbers (WLLN).
(i) State clearly what is the WLLN.
(ii) Prove the WLLN
(iii) Explain why the WLLN is important when studying the OLS estimator. (You don’t have to prove anything here. Just explain!)

2. [30 points] About the White test for heteroscedasticity.
(i) State clearly how to implement the White test.
(ii) Suppose that the