並列摘要
In dealing with positively-skewed distributed data, the direct logarithmic transformation may result in a control chart with inappropriate control parameters in the application of quality control. When a specific interval for the lognormal mean is given, a new method is introduced to set up two control charts and these two charts can monitor a process for which the underlying distribution of the quality characteristic is lognormal.
並列關鍵字
lognormal distribution ； control chart ； quality control ； mean ； variance ； normal distribution延伸閱讀
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