Chain ratio and regression type estimators for median estimation in survey sampling

Singh, Sarjinder; Singh, Housila P.; Upadhyaya, Lakshmi N.
January 2007
Statistical Papers;Jan2007, Vol. 48 Issue 1, p23
Academic Journal
In this paper, we consider chain ratio and regression type estimators for estimating median in survey sampling. We find expressions for the variance of the chain-ratio and chain-regression type estimators considered in the present investigation. The optimum values of the first phase and second phase sample sizes are also obtained for the fixed cost of survey. The relative efficiency of chain-ratio and chain-regression type estimators have been studied in comparison to ratio and regression type estimators of median proposed by Singh, Joarder and Tracy (2001).


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