On designing a new cumulative sum Wilcoxon signed rank chart for monitoring process location

Muhammad Abid, Hafiz Zafar Nazir, Muhammad Tahir and Muhammad Riaz

PLOS ONE, 2018, vol. 13, issue 4, 1-18

Abstract: In this paper, ranked set sampling is used for developing a non-parametric location chart which is developed on the basis of Wilcoxon signed rank statistic. The average run length and some other characteristics of run length are used as the measures to assess the performance of the proposed scheme. Some selective distributions including Laplace (or double exponential), logistic, normal, contaminated normal and student’s t-distributions are considered to examine the performance of the proposed Wilcoxon signed rank control chart. It has been observed that the proposed scheme shows superior shift detection ability than some of the competing counterpart schemes covered in this study. Moreover, the proposed control chart is also implemented and illustrated with a real data set.

Date: 2018
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0195762

DOI: 10.1371/journal.pone.0195762

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