In this paper we will discuss the use of parabolic control limits for cumulative sum (Cusum) control charts and an approach to correct the average run length (ARL) problem that may result from using a "three sigma" parabolic mask. Result of a simulation study will be reported to correct this problem.
Department, Program, or Center
Holmes, D., & Mergen, A. E. (2011). Discussion of parabolic mask for cumulative sum control charts. Northeast Decision Sciences Institute Conference, Montreal, Canada, 14-16 April (pp. 1295-1300).
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