Abstract
The main difficulties in the use of economic designs are the computations involved, the difficulty in specifying process parameters, and the fact that the sampling interval h rarely is a natural quantity of time. The economic design of X -charts involves the determination of the optimum values of the three control parameters: the sample size n, the control limit coefficient k and the sampling interval h. This paper deals with the economic design of X -charts for multiple assignable causes and develops an explicit equation for h in terms of n and k. With the explicit equation for h, we can give an optimization procedure, which is implementable in real time on a personal computer, for obtaining the optimal solutions of these parameters n, k and h for such charts. The results and the execution times of all numerical examples show that our optimization procedure is accurate and efficient.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
