ENBIS-8 in Athens

21 – 25 September 2008 Abstract submission: 14 March – 11 August 2008

Design Schemes for the Xbar Control Chart

23 September 2008, 16:30 – 16:50

Abstract

Submitted by
Marit Schoonhoven
Authors
Marit Schoonhoven Muhammed Riaz Ronald J.M.M. Does
Affiliation
IBIS UvA
Abstract
This paper studies several issues regarding the design of the Xbar control chart under normality. Different estimators of the standard deviation are considered and the effect of the estimator on the performance of the control chart is investigated. Furthermore, the choice of the factor used to get accurate control limits for moderate sample sizes, is addressed. The paper gives an overview on the performance of the charts by studying different characteristics of the run length distribution, both in the in-control and in the out-of-control situation.

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