(a) Alalyze full the assumption of “homocedasticity” of a CLRM. Moreover, which are the differences wit heteroscedasticity?

(a) Alalyze full the assumption of “homocedasticity” of a CLRM. Moreover, which are the differences wit heteroscedasticity? (b) Analyze fully the assumption of specification bias and use an example to show your intuition.