Partial stratified ranked set sampling scheme for estimation of population mean and median

Maria M, Ibrahim M Almanjahie, Muhammad Ismail and Ammara Nawaz Cheema

PLOS ONE, 2023, vol. 18, issue 2, 1-10

Abstract: Ranked set sampling is an alternative to simple random sampling, which uses the least amount of money and time. The ranked set sampling (RSS) is modified to obtain a more efficient and cost-effective estimator of population parameters. This paper aims to bring a more efficient and cost-effective design than stratified ranked set sampling and simple random sampling. In some distributions, the suggested method used fewer sample units than stratified ranked set sampling and gives a more efficient estimation of population parameters. In symmetric distributions, the proposed design, called "partial stratified ranked set sampling" yields an unbiased estimator of the population mean. The design is illustrated with practical data of COVID-19 confirmed cases.

Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0275340

DOI: 10.1371/journal.pone.0275340

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