Effect of measurement error and autocorrelation on the (X)over-bar chart
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Data
2011-01-01
Autores
Costa, Antonio F. B. [UNESP]
Castagliola, Philippe
Título da Revista
ISSN da Revista
Título de Volume
Editor
Routledge Journals, Taylor & Francis Ltd
Resumo
Measurement error and autocorrelation often exist in quality control applications. Both have an adverse effect on the (X) over bar chart's performance. To counteract the undesired effect of autocorrelation, we build-up the samples with non-neighbouring items, according to the time they were produced. To counteract the undesired effect of measurement error, we measure the quality characteristic of each item of the sample several times. The chart's performance is assessed when multiple measurements are applied and the samples are built by taking one item from the production line and skipping one, two or more before selecting the next.
Descrição
Palavras-chave
(X)over-bar chart, measurement error, first-order autoregressive model, multiple measurements, skipping items strategy
Como citar
Journal of Applied Statistics. Abingdon: Routledge Journals, Taylor & Francis Ltd, v. 38, n. 4, p. 661-673, 2011.