VARIANCE ESTIMATION IN MULTI-STAGE SAMPLING |
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| Authors: | R Arnab |
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| Institution: | Indian Statistical Institute, Calcutta |
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| Abstract: | In multi-stage sampling with the first stage units (fsu) chosen without replacement (WOR) with varying probability schemes (VPS) unbiased estimators (UE) of variances of homogeneous linear (HL) functions of unbiased estimators (UE) Ti's of fsu totals Yi's based on selection of subsequent stage units (SSU) from chosen fsu's are derived as homogeneous quadratic (HQ) functions of alternative less efficient UE's, say of Ti';'s of Yi's. Specific strategies are illustrated. |
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| Keywords: | Finite population two-stage sampling variance estimation varying probability sampling scheme |
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