Numerical Approximation to the Performance of CUSUM Charts for EMA (1) Process

These paper, we approximate the average run length (ARL) for CUSUM chart when observation are an exponential first order moving average sequence (EMA1). We used Gauss-Legendre numerical scheme for integral equations (IE) method for approximate ARL0 and ARL1, where ARL in control and out of control, respectively. We compared the results from IE method and exact solution such that the two methods perform good agreement.

Authors:

• K. Petcharat
• Y. Areepong
• S. Sukparungsri
• G. Mititelu

Keywords:

• Cumulative Sum Chart
• Moving Average Observation
• Average Run Length
• Numerical Approximations.

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