Question
Download Solution PDFIf X1, X2, … Xn is a simple random sample without replacement of size n from a finite population of N units with mean μ and variance σ2, the covariance of (Xi,Xj) will be:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation
If x1, x2--------------,xn is a single random sample without replacement of size n is from a finite population N with mean μ and variance σ2 the covariance(xi, xj) is given by
∴ Cov(xi, xj) = σ2/(n – 1)
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