Could anyone help with this?

If1,X2, andX3 constitute a random sample of sizeXn=3 from a normal population with the mean m and the variance s2, find the efficiency of (1+2X2+X4)/4 relative to (X1+X2+X3)/3.X

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- Nov 2nd 2008, 12:06 PMmath beginnerEfficiency
Could anyone help with this?

If1,*X*2, and*X*3 constitute a random sample of size*X**n*=3 from a normal population with the mean m and the variance s2, find the efficiency of (1+2*X*2+*X*4)/4 relative to (*X*1+*X*2+*X*3)/3.*X* - Nov 3rd 2008, 12:18 AMCaptainBlack