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Serial Correlation of Quality Control Data -- On the Use of Proper Control Charts

Published

Author(s)

P Winkel, Nien F. Zhang

Abstract

Biochemical quality control data have been reported to be autocorrelated. Serial correlation may increase the rate of false alarms and decrease that of true alarms if traditional control charts are used. In this paper, the times series were examined and the performance of the EWMAST chart was compared to that of the EWMA chart in the presence of correlation.
Citation
Scandinavian Journal of Clinical and Laboratory Investigation
Volume
64
Issue
No. 3

Keywords

autocorrelation, biochemical, exponentially weighted moving average, mean level, quality control, time series

Citation

Winkel, P. and Zhang, N. (2004), Serial Correlation of Quality Control Data -- On the Use of Proper Control Charts, Scandinavian Journal of Clinical and Laboratory Investigation (Accessed June 20, 2024)

Issues

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Created May 31, 2004, Updated October 12, 2021