ARTICLE
ABSTRACT
In successive (rotation) sampling over two occasions with partial replacement of units at current (second) occasion, utilizing the information on an auxiliary character over both the occasions along with the information from previous occasion on study character, regression type estimators for estimating the population mean at current (second) occasion have been proposed. Behaviours of the proposed estimators have been studied. Proposed estimators have been compared with the sample mean estimator when there is no matching and the optimum estimator, which is a linear combination of the means of the matched and unmatched portion of the sample at the current (second) occasion. Optimum replacement policy is also discussed. Results have been demonstrated through empirical and pictorial means of elaboration.
KEYWORDS
Successive sampling, partial replacement, partial regression coefficient, regression type, bias, mean square error, optimum replacement policy.
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