An efficient MEWMA chart for Gumbel's bivariate Pareto distribution

Control charts play a vital role in process monitoring to ensure the product's desired standards. Due to rapid improvements in data collection methods, multivariate charts are preferred over univariate charts. This paper proposes a bivariate exponentially weighted moving average chart for the s...

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Main Authors: Ayesha Talib, Sajid Ali, Ismail Shah
Format: Article
Language:English
Published: Taylor & Francis Group 2024-12-01
Series:Journal of Taibah University for Science
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/16583655.2024.2338949
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author Ayesha Talib
Sajid Ali
Ismail Shah
author_facet Ayesha Talib
Sajid Ali
Ismail Shah
author_sort Ayesha Talib
collection DOAJ
description Control charts play a vital role in process monitoring to ensure the product's desired standards. Due to rapid improvements in data collection methods, multivariate charts are preferred over univariate charts. This paper proposes a bivariate exponentially weighted moving average chart for the simultaneous monitoring of the mean vector of Gumbel's bivariate Pareto type II (also known as the Lomax distribution) time-between-events data. The performance of the proposed chart is assessed through average run length, median run length, and the standard deviation of the run length criteria. To show the implementation of the chart in the real world, illustrative examples are also presented.
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spelling doaj-art-8ee6bdf9efe84e51a71e1bd2e2fc3f8c2025-08-20T02:36:43ZengTaylor & Francis GroupJournal of Taibah University for Science1658-36552024-12-0118110.1080/16583655.2024.2338949An efficient MEWMA chart for Gumbel's bivariate Pareto distributionAyesha Talib0Sajid Ali1Ismail Shah2Department of Statistics, Quaid-i-Azam University, Islamabad, PakistanDepartment of Statistics, Quaid-i-Azam University, Islamabad, PakistanDepartment of Statistics, Quaid-i-Azam University, Islamabad, PakistanControl charts play a vital role in process monitoring to ensure the product's desired standards. Due to rapid improvements in data collection methods, multivariate charts are preferred over univariate charts. This paper proposes a bivariate exponentially weighted moving average chart for the simultaneous monitoring of the mean vector of Gumbel's bivariate Pareto type II (also known as the Lomax distribution) time-between-events data. The performance of the proposed chart is assessed through average run length, median run length, and the standard deviation of the run length criteria. To show the implementation of the chart in the real world, illustrative examples are also presented.https://www.tandfonline.com/doi/10.1080/16583655.2024.2338949Time-between-eventsbivariate Gumbel distributionEWMA chartaverage run length
spellingShingle Ayesha Talib
Sajid Ali
Ismail Shah
An efficient MEWMA chart for Gumbel's bivariate Pareto distribution
Journal of Taibah University for Science
Time-between-events
bivariate Gumbel distribution
EWMA chart
average run length
title An efficient MEWMA chart for Gumbel's bivariate Pareto distribution
title_full An efficient MEWMA chart for Gumbel's bivariate Pareto distribution
title_fullStr An efficient MEWMA chart for Gumbel's bivariate Pareto distribution
title_full_unstemmed An efficient MEWMA chart for Gumbel's bivariate Pareto distribution
title_short An efficient MEWMA chart for Gumbel's bivariate Pareto distribution
title_sort efficient mewma chart for gumbel s bivariate pareto distribution
topic Time-between-events
bivariate Gumbel distribution
EWMA chart
average run length
url https://www.tandfonline.com/doi/10.1080/16583655.2024.2338949
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