Results 1 to 10 of about 17,139,342 (375)

Control of control charts [PDF]

, 2022
Although the Shewhart chart is widely used in practice because of its simplicity, applying this control chart to monitor the mean of a process may lead to two types of problems. The first concerns the typically unknown parameters involved in the distribution, while the second concerns the validity of the assumption of normality itself. The objective of
Nurdiati, Sri
core   +14 more sources

Attribute Control Chart Using the Repetitive Sampling Under Neutrosophic System

IEEE Access, 2019
In this paper, an attribute control chart using the repetitive sampling under the neutrosophic statistics system is discussed. The necessary measures of the proposed control chart under the neutrosophic statistics system are given.
Muhammad Aslam
doaj   +2 more sources

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

Scientific 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, Walid Abdelfattah, Tahir Abbas, Abdullah Ali H. Ahmadini, Amani Idris Ahmed Sayed, Bakhtiyar Ahmad   +5 more
doaj   +2 more sources

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

Media 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

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

MethodsX
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, Muhammad Mashuri, Muhammad Ahsan   +2 more
doaj   +2 more sources

A Robust TEWMA–MA Control Chart Based on Sign Statistics for Effective Monitoring of Manufacturing Processes

Mathematics
A nonparametric control chart is a type of control chart that does not rely on assumptions regarding the underlying distribution of the data. This characteristic provides greater flexibility and robustness, particularly when handling non-normal data ...
Piyatida Saesuntia, Yupaporn Areepong, Saowanit Sukparungsee   +2 more
doaj   +2 more sources

A New Attribute Control Chart Using Multiple Dependent State Repetitive Sampling

IEEE Access, 2017
In this paper, a new attribute control chart using multiple-dependent state repetitive sampling is designed. The operational procedure and structure of the proposed control chart is given.
Mansour Sattam Aldosari, Muhammad Aslam, Chi-Hyuck Jun   +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]

Scientific 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, Muhammad Hanif, Muhammad Noor-ul-Amin, Imad Khan, Bakhtiyar Ahmad, Abdelgalal O. I. Abaker, Jumanah Ahmed Darwish   +6 more
doaj   +2 more sources

Neutrosophic multivariate EWMA control chart [PDF]

Decision 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, Muhammad Ahsan, Hidayatul Khusna   +2 more
doaj   +1 more source

New extended exponentially weighted moving average control chart for monitoring process mean. [PDF]

Heliyon
Javed H, Ismail M, Saeed N.
europepmc   +2 more sources