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Design of an EWMA control chart by adaptation of smoothing constant based on a function of estimated shift [PDF]

open access: yesScientific Reports
This study introduces a novel Adaptive EWMA (AEWMA) control chart designed to monitor the mean of a normally distributed process with enhanced responsiveness.
Hadeel AlQadi   +5 more
doaj   +2 more sources

PEMODELAN GRAFIK PENGENDALI TOTAL DAN RATAAN DISKRIT UNTUK GENERALISASI DISTRIBUSI GEOMETRIK [PDF]

open access: yesMedia Statistika, 2016
Total events which do by counting will be obtained discret data type. The discret data type and geometric distribution could be drawn by total number of events chart (G chart) and average number of event chart (H chart).
Sudarno Sudarno, Moch. Abdul Mukid
doaj   +2 more sources

Multivariate Control Chart based on Neutrosophic Hotelling T2 Statistics and Its Application [PDF]

open access: goldJTAM (Jurnal Teori dan Aplikasi Matematika), 2022
Under classical statistics Hotelling 〖 T〗^2 control chart is applied when the observations of quality characteristics are precise, exact, or crips data. However, in reality, under uncertain conditions, the observations are not necessarily precise, exact,
Wibawati Wibawati   +4 more
doaj   +2 more sources

Construction of Bivariate F-Control Chart with Application [PDF]

open access: diamondEurasian Journal of Science and Engineering, 2018
In this paper, construction of bivariate F-Control Chart through three stages (test of bivariate normal distribution, construction of bivariate S-Chart and use the relationship between the distribution of T2 and F) corresponding for Shewart T2– Chart for
Taha Hussein Ali   +2 more
doaj   +2 more sources

Improved bootstrap X¯ control chart for non-normally distributed data [PDF]

open access: yesMethodsX
This article proposes new method to improve the performance of bootstrap control chart for non-normal data. Bootstrap control charts for monitoring data require attention because the average run length (ARL) results of the bootstrap control charts can be
Sukma Adi Perdana   +2 more
doaj   +2 more sources

Max-mixed EWMA control chart for joint monitoring of mean and variance: an application to yogurt packing process [PDF]

open access: yesScientific Reports
The Max-Mixed EWMA Exponentially Weighted Moving Average (MM EWMA) control chart is a statistical process control technique used for joint monitoring of the mean and variance of a process.
Seher Malik   +6 more
doaj   +2 more sources

Neutrosophic multivariate EWMA control chart [PDF]

open access: yesDecision Science Letters, 2023
The MEWMA chart is one of the traditional multivariate charts which are widely employed in inspecting the quality of manufacturing and services.
Wibawati Wibawati   +2 more
doaj   +1 more source

Revisiting the one-sided EWMA control chart [PDF]

open access: yesJournal of Applied Research on Industrial Engineering, 2022
Exponential Weighted Moving Average (EWMA) control charts have been widely used in Statistical Process Control (SPC) to detect small and persistent process shifts.
Duy Duong-Tran   +2 more
doaj   +1 more source

Optimized repetitive sampling X-bar control chart: performance evaluation and comparison with Shewhart control chart

open access: yesFrontiers 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
doaj   +1 more source

Self‐adapting control charts [PDF]

open access: yesStatistica Neerlandica, 2006
When the distributional form of the observations differs from normality, standard control charts are often prone to serious errors. Such model errors can be avoided by using (modified) nonparametric control charts. Unfortunately, these control charts suffer from large stochastic errors caused by estimation.
Albers, Willem, Kallenberg, Wilbert C.M.
openaire   +2 more sources

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