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Inferential Statisticshard
0:00.0

In a linear model Y=Xβ+ϵY = X\beta + \epsilonY=Xβ+ϵ, if errors are heteroscedastic with Var(ϵ)=ΩVar(\epsilon) = \OmegaVar(ϵ)=Ω, what is the Best Linear Unbiased Estimator (BLUE)?