Joint (X)over-bar and R charts with variable sample sizes and sampling intervals


Autoria(s): Costa, AFB
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/10/1999

Resumo

Recent studies have shown that the (X) over bar chart with variable sampling intervals (VSI) and/or with variable sample sizes (VSS) detects process shifts faster than the traditional (X) over bar chart. This article extends these studies for processes that are monitored by both the (X) over bar and R charts. A Markov chain model is used to determine the properties of the joint (X) over bar and R charts with variable sample sizes and sampling intervals (VSSI). The VSSI scheme improves the joint (X) over bar and R control chart performance in terms of the speed with which shifts in the process mean and/or variance are detected.

Formato

387-397

Identificador

http://asq.org/qic/display-item/?item=13851

Journal of Quality Technology. Milwaukee: Amer Soc Quality Control-asqc, v. 31, n. 4, p. 387-397, 1999.

0022-4065

http://hdl.handle.net/11449/31595

WOS:000083162800003

Idioma(s)

eng

Publicador

Amer Soc Quality Control-asqc

Relação

Journal of Quality Technology

Direitos

closedAccess

Tipo

info:eu-repo/semantics/article