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Estimation of Normal Variance Based on Balanced and Unbalanced Ranked Set Samples
Authors:Philip L.H. Yu  Kin Lam  Bi Mal K. Sinha
Affiliation:(1) Department of Statistics, The University of Hong Kong, Hong Kong;(2) Department of Math/Statistics, University of Maryland Baltimore County, Baltimor, Maryland, USA
Abstract:In this paper we address the problem of estimation of the variance of a normal population based on a balanced as well as an unbalanced ranked set sample (RSS), which is a modification of the original RSS of McIntyre (1952).We have proposed several methods of estimation of variance by combining different unbiased between and within estimators, and compared their performances
Keywords:Normal distribution  ranked set sample  simple random sample  unequal allocation
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