Normal Sampling distributions Under the clm assumption s conditiona l on the sample values of the independen t variable s B - NO orma 1 B, vare, l so that B 16) normal l(0,4) B is distribute d normally because it is a linear combinatio n of the errors Economics 20- Prof anderson 5Economics 20 - Prof. Anderson 5 Normal Sampling Distributions  ( ) ( ) ( ) ( ) is a linear combinatio n of the errors is distribute d normally because it ˆ ~ Normal 0,1 ˆ ˆ ,so that ˆ ~ Normal , ˆ the sample values of the independen t variable s Under the CLM assumption s, conditiona l on b j b b b b b b j j j j j j sd Var −