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A Unifying Concept of X Chart and X-Bar Chart when Subgroup Sizes are Equal

Authors: Maman A. Djauhari;

A Unifying Concept of X Chart and X-Bar Chart when Subgroup Sizes are Equal

Abstract

X chart and X-bar chart are usually seen as two techniques in SPC with different concepts. In this paper we propose two propositions as a unifying concept for those two charts; one for start-up stage and the other for process control for future observations. Another advantage of this concept lies in the determination of control limits which is not based on approximation method anymore. An exact method will be introduced. Konsep untuk Bagan Kendali X dan Bagan Kendali X-Bar Bila Ukuran Subgrupnya Sama Bagan Kendali X dan bagan kendali X-Bar biasanya dipandang sebagai dua teknik Pengendalian Proses Statistik yang memiliki konsep yang berbeda. Dalam tulisan ini kami usulkan dua buah proposisi yang memungkinkan memandang kedua bagan kendali itu dari satu konsep yang sama. Proposisi pertama adalah untuk tahap awal pembuatan bahan kendali (start-up stage) dan yang lain untuk pengendalian proses melalui metode pendekatan seperti yang biasa dikemukakan dalam berbagai pustaka tentang pengendalian proses. Metode eksak akan diperkenalkan.

Keywords

pengendalian proses, Q1-390, Science (General), Science, Q, tahap awal pembuatan bagan kendali (start-up stage), bagan kendali X-Bar, batas kendali, bagan kendali X, X Chart

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold