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An Examination of the Robustness to Non Normality of the EWMA Control Charts for the Dispersion

Year: 2005

Type: article

Abstract: The EWMA control chart is used to detect small shifts in a process. It has been shown that, for certain values of the smoothing parameter, the EWMA chart for the mean is robust to non normality. In this article, we examine the case of non normality in the EWMA charts for the dispersion. It is shown that we can have an EWMA chart for dispersion robust to non normality when non normality is not extreme.

Source: Communications in Statistics - Simulation and Computation

DOI: 10.1080/03610910500308719

Authors: Petros E. Maravelakis, John Panaretos, Stelios Psarakis

Institution: Athens University of Economics and Business

Language: English

Topic: Advanced Statistical Process Monitoring

Subfield: Statistics, Probability and Uncertainty

Field: Decision Sciences

Domain: Social Sciences

Open Access status: green

OpenAlex ID: W1501778410

FWCI: 1.156

Cites: 19

Cited by: 60

Related to: 10