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Ranked set sampling with unequal samples and unequal replications
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نویسنده
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bhoj d.s. ,kushary d.
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منبع
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pakistan journal of statistics - 2014 - دوره : 30 - شماره : 3 - صفحه:351 -362
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چکیده
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A ranked set sampling procedure with unequal samples and unequal replications (rssur) is proposed and used to estimate the population mean. this estimator is then compared with the estimators based on ranked set sampling with unequal samples and equal replications (rssu),median ranked set sampling (mrss) and ranked set sampling (rss). it is shown that the relative precisions of the proposed estimator are higher than the estimators based on rssu,mrss and rss for unimodal symmetric and moderately asymmetrical distributions. an example of estimating the mean diameter at breast height of longleaf-pine trees on the wade tract in thomas county,georgia,is presented. © 2014 pakistan journal of statistics.
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کلیدواژه
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Gamma distribution; Laplace distribution; Logistic distribution; Mean square error; Median ranked set sampling; Normal distribution; Relative precision; Symmetric distributions; Unbiased estimator; Weibull distribution
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آدرس
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department of mathematical sciences,rutgers university-camden,camden, United States, department of mathematical sciences,rutgers university-camden,camden, United States
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Authors
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