Screening Outliers in Normal Process Control Data with Uniform Residuals
作者:
QuesenberryCharles P.,
期刊:
Journal of Quality Technology
(Taylor Available online 1986)
卷期:
Volume 18,
issue 4
页码: 226-233
ISSN:0022-4065
年代: 1986
DOI:10.1080/00224065.1986.11979016
出版商: Taylor&Francis
关键词: Outliers;Process Control;Screening;Uniform Residuals
数据来源: Taylor
摘要:
The use of sequential uniform residuals is proposed to screen outliers in process control data. The exact distribution theory of these statistics allows a precise control of the number of observations incorrectly rejected when the process is in control and generated by a normal process distribution. It is also shown that the technique given here has attractive inference properties for detecting shifts in the process distribution mean. The power for detecting a mean shift of specified magnitude is given in terms of a noncentral Studenttdistribution function, and it is observed that a central Studenttdistribution gives a good approximation to this power for most cases of interest.
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