Quality Control Methods for Multivariate Binomial and Poisson Distributions
作者:
H.I. Patel,
期刊:
Technometrics
(Taylor Available online 1973)
卷期:
Volume 15,
issue 1
页码: 103-112
ISSN:0040-1706
年代: 1973
DOI:10.1080/00401706.1973.10489014
出版商: Taylor & Francis Group
关键词: Base Pattern;Time-Dependence;Markov Chain;Autocorrelation;Singular Covariance Matrix;Conditional Independence;Factor Analysis;Normal Approximation;x2 -Chart
数据来源: Taylor
摘要:
This paper deals with methods of quality control when observation-vectors are coming from a multivariate binomial or multivariate Poisson population. The case when successive observations are time-dependent has been studied under certain assumptions. Further when a sample covariance matrix is singular or near singular, a method has been proposed for translating it into a non-singular estimate under the assumption of conditional independence. Assuming approximate normality ax2-chart has been proposed. At the end a numerical example is given to illustrate the procedure in this paper.
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