期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2013
卷号：2
期号：7
页码：2515
出版社：S&S Publications
摘要：Numerous control chart procedures were developed and their widespread applicability as vital tools instatistical process control cannot be overemphasized. Under normal circumstances, process monitoring and controlshould include several interrelated process variables. The Hotelling T2 statistic being one of the most popular controlchart procedures can be utilized to detect whether the observed disturbance in a given process is as a result of someperturbations in the mean vector of the quality characteristics or in their variability. One of the most notable features ofHotelling T2 statistic is its invariance property. This article demonstrates this important property using a real datasetobtained from a well-known cement production company in Nigeria.
