Communications for Statistical Applications and Methods

The Korean Statistical Society (한국통계학회)
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Quantile estimation using near optimal unbalanced ranked set sampling

  • Nautiyal, Raman (Department of Statistics, Kumaun University) ;
  • Tiwari, Neeraj (Department of Statistics, Kumaun University) ;
  • Chandra, Girish (Division of Forestry Statistics, Indian Council of Forestry Research and Education)
  • Received : 2021.06.04
  • Accepted : 2021.09.28
  • Published : 2021.11.30
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Abstract

Few studies are found in literature on estimation of population quantiles using the method of ranked set sampling (RSS). The optimal RSS strategy is to select observations with at most two fixed rank order statistics from different ranked sets. In this paper, a near optimal unbalanced RSS model for estimating pth(0 < p < 1) population quantile is proposed. Main advantage of this model is to use each rank order statistics and is distributionfree. The asymptotic relative efficiency (ARE) for balanced RSS, unbalanced optimal and proposed near-optimal methods are computed for different values of p. We also compared these AREs with respect to simple random sampling. The results show that proposed unbalanced RSS performs uniformly better than balanced RSS for all set sizes and is very close to the optimal RSS for large set sizes. For the practical utility, the near optimal unbalanced RSS is recommended for estimating the quantiles.

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References

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