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Permutation Tests for Two-sample Location Problem Under Extreme Ranked Set Sampling

Author(s)
Monjed H. Samuh Department of Applied Mathematics & Physics, Palestine Polytechnic University, Palestine
Ridwan A. Sanusi Department of Community Health Sciences, University of Manitoba, Winnipeg, MB, Canada
Abstract
In this paper, permutation test of comparing two-independent samples is investigated in the context of extreme ranked set sampling (ERSS). Three test statistics are proposed. The statistical power of these new test statistics are evaluated numerically. The results are compared with the statistical power of the classical independent two-sample t-test, MannWhitney U test, and the usual two-sample permutation test under simple random sampling (SRS). In addition, the method of computing a confidence interval for the two-sample permutation problem under ERSS is explained. The performance of this method is compared with the intervals obtained by SRS and Mann-Whitney procedures in terms of empirical coverage probability and expected length. The comparison shows that the proposed statistics outperform their counterparts. Finally, the application of the proposed statistics is illustrated using a real life example.
Publication Details
Page(s) 387-408
Published Journal: Pakistan Journal of Statistics and Operation Research, Volume: 16, Issue: 2, Year: 2020

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Keywords
Extreme Ranked Set Sampling, Power Level, Words:Permutation Test, Type I Error Probability
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