Question: Mean and Variance sample Suppose that the data 2 {1),. . . , Z (n) have the same distribution with unknown mean u but are

Mean and Variance sample

Suppose that the data 2 {1),. . . , Z (n) have the same distribution with unknown mean u but are positively correlated with correlation that decreases as the separation between data increases: cov(Z(i),Z(j)} = a3- pli-i|,i,j = 1,...,n,o

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