Find e-y-barand findvar-y-bar

Reference no: EM13244092

Suppose thatY1,Y2,Y3 is a sample of observations fromN(μ, s2) population but that Y1, Y2& Y3are not independent. In factsuppose:
Cov(Y1Y2)=cov(Y2Y3)= cov(Y1Y3)=0.5s2

Let Y(y-bar)= (Y1+Y2+ Y3)/3
1.) Find E(y-bar)
2.) FindVar(y-bar)

Reference no: EM13244092

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