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- Variable parameter and double sampling (X)over-bar charts in the presence of correlation: The Markov chain approach
- Universidade Estadual Paulista (UNESP)
- The general assumption under which the (X) over bar chart is designed is that the process mean has a constant in-control value. However, there are situations in which the process mean wanders. When it wanders according to a first-order autoregressive (AR (1)) model, a complex approach involving Markov chains and integral equation methods is used to evaluate the properties of the (X) over bar chart. In this paper, we propose the use of a pure Markov chain approach to study the performance of the (X) over bar chart. The performance of the chat (X) over bar with variable parameters and the (X) over bar with double sampling are compared. (C) 2011 Elsevier B.V. All rights reserved.
- International Journal of Production Economics. Amsterdam: Elsevier B.V., v. 130, n. 2, p. 224-229, 2011.
- Elsevier B.V.
- Markov chain
- (X)over-bar chart
- Variable parameter
- Double sampling
- Acesso restrito
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