Design of an Exponentially Weighted Moving Average (EWMA) and An Exponentially Weighted Root Mean Square (EWRMS) Control Chart [PDF]
, 2017 Some of the most widely-used form of control charts Walter Shewhart charts are sensitive to detecting relatively large shifts in the process. On Shewhart charts every observation is plotted independently of previous observations.The quantity plotted on ...
Rashid, A. P. (Asst)
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Frontiers in Applied Mathematics and Statistics, 2023 When initial sample information falls short of enabling industrial engineers to confidently make decisions about lot quality assessment, repetitive sampling emerges as a solution.
Jose J. Muñoz +2 more
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Control Charts and the Effect of the Two-Component Measurement Error Model [PDF]
, 2007 Monitoring algorithms, such as the Shewhart and Cusum control charts, are often used for monitoring purposes in the chemical industry or within an environmental context.
Cocchi, Daniela, Scagliarini, Michele
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A novel experience in the use of control charts for the detection of nosocomial infection outbreaks
Clinics, 2011 OBJECTIVE: This study aims to compare different control charts to monitor the nosocomial infection rate per 1,000 patient-days. METHODS: The control charts considered in this study were the traditional Shewhart chart and a variation of this, the ...
Isabel Cristina Gomes +2 more
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Fuzzy mean and range control charts for monitoring fuzzy quality characteristics: a case study in food industries using chicken nugget [PDF]
, 2014 Organizations must improve or at least maintain the quality of their products to be competitive in today's market. Thus, developing a new approach which could utilize more information from the production process has become an inevitable quality ...
Ahmad, Siti Azfanizam +4 more
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Control chart limits based on true process capability with consideration of measurement system error
International Journal of Metrology and Quality Engineering, 2016 Shewhart X̅ and R control charts and process capability indices, proven to be effective tools in statistical process control are widely used under the assumption that the measurement system is free from errors.
Amara Souha Ben +2 more
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The Use of Control Charts To Monitor Air Plane Accidents of the Hellenic Air Force
Revstat Statistical Journal, 2021 Accidents are unfortunate events that cause economic and/or human losses to individuals, organisations, companies or to the society. Air plane accidents cause both economic and human losses most of the times.
Vasileios Alevizakos +2 more
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Comparison of control charts for monitoring clinical performance using binary data. [PDF]
, 2017 BACKGROUND: Time series charts are increasingly used by clinical teams to monitor their performance, but statistical control charts are not widely used, partly due to uncertainty about which chart to use.
Cromwell, David A +4 more
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Exponentially weighted moving average-Moving average charts for monitoring the process mean.
PLoS ONE, 2020 This research aimed to propose a newly-mixed control chart called the Exponentially Weighted Moving Average-Moving Average Chart (EWMA-MA) to detect the mean change in a process underlying symmetric and asymmetric distributions.
Saowanit Sukparungsee +2 more
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A simple approach for monitoring business service time variation. [PDF]
, 2014 Control charts are effective tools for signal detection in both manufacturing processes and service processes. Much of the data in service industries comes from processes having nonnormal or unknown distributions.
Arnold, Barry C, Yang, Su-Fen
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