A study of the median run length (MRL) performance of the EWMA t chart for the mean
The exponentially weighted moving average (EWMA) X chart is effective in detecting small shifts. However, the EWMA X chart is not robust enough to prevent errors in estimating the process standard deviation or a changing standard deviation. To overcome this problem, Zhang et al. suggested the EWMA t...
Main Authors: | Chin, W.S (Author), Khoo, M.B.C (Author) |
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Format: | Article |
Language: | English |
Published: |
Stellenbosch University,
2012-11.
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Subjects: | |
Online Access: | Get fulltext |
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