Testing in Industrial Experiments With Ordered Categorical Data
作者:
VijayanN. Nair,
期刊:
Technometrics
(Taylor Available online 1986)
卷期:
Volume 28,
issue 4
页码: 283-291
ISSN:0040-1706
年代: 1986
DOI:10.1080/00401706.1986.10488143
出版商: Taylor & Francis Group
关键词: Accumulation analysis;ANOVA;Dispersion;Location;Ordered Categories;Scoring methods
数据来源: Taylor
摘要:
This article deals with some techniques for analyzing ordered categorical data from industrial experiments for quality improvement. Taguchi's accumulation analysis method is shown to have reasonable power fordetecting important location effects; however, it is an unnecessarily complicated procedure. For detecting dispersion effects, it need not even be as powerful as Pearson's chi-squared test. Instead two simple and easy to use scoring schemes are suggested for identifying the location and dispersion effects separately. The techniques are illustrated on data from an experiment to optimize the process of forming contact windows in complementary metal-oxide semiconductor circuits.
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