Economic Statistical Design Of (X)OverBar Control Charts For Systems With Gamma (Lambda,2) InControl Times. JOURNAL OF APPLIED STATISTICS, 30. pp. 397409.

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Abstract
In this paper, gamma (lambda,2) distribution is considered as a failure model for the economic statistical design of (x) over bar control charts. The study shows that the statistical performance of control charts can be improved significantly, with only a slight increase in the cost, by adding constraints to the optimization problem. The use of an economic statistical design instead of an economic design results in control charts that may be less expensive to implement, that have lower false alarm rates, and that have a higher probability of detecting process shifts. Numerical examples are presented to support this proposition. The results of economic statistical design are compared with those of a pure economic design. The effects of adding constraints for statistical performance measures, such as Type I error rate and the power of the chart, are extensively investigated.
Item Type:  Article 

Subjects:  Systems 
Divisions:  College Of Computer Sciences and Engineering > Systems Engineering Dept 
Depositing User:  MR. ATIQ WALIULLAH SIDDIQUI 
Date Deposited:  11 Jun 2008 07:55 
Last Modified:  01 Nov 2019 16:43 
URI:  http://eprints.kfupm.edu.sa/id/eprint/2390 