Sppose thaty1y2y3 is a sample of observations fromnmu s2
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)/31.) Find E(y-bar)2.) FindVar(y-bar)
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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
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