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An Addendum to “Regression Estimator in Ranked Set Sampling by Yu and Lam”

  • Raghunath ArnabEmail author
  • J. O. Olaomi
  • B. C. Rodŕiguez
Original Article
  • 24 Downloads

Abstract

Yu and Lam (Biometrics 53:1070–1080, 1997) proposed a regression estimator for the two-phase sampling procedure in ranked set sampling. The variance expression of their proposed regression estimator seems to be incorrect. In this note, the variance of the regression estimator is corrected.

Keywords

Order statistics Ranked set sampling Relative efficiency Sampling with replacement Two-phase sampling 

Mathematics Subject Classification

62D05 

Notes

Acknowledgements

The authors are thankful to the two learned reviewers for their valuable comments which lead to substantial improvement in the earlier version of this paper. This article was finalized during the R & D leave granted to the third author by the University of South Africa. The views expressed in this paper are those of the authors alone, and they do not necessarily reflect the views of the University of South Africa.

Compliance with Ethical Standards

Conflict of interest

The authors have no conflict of interest.

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Copyright information

© Grace Scientific Publishing 2019

Authors and Affiliations

  1. 1.University of BotswanaGaboroneBotswana
  2. 2.University of South AfricaPretoriaSouth Africa
  3. 3.Universidad de GranadaGranadaSpain

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