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A comparison of control charting procedures for monitoring process dispersion

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IIE Transactions

Abstract

We consider several control charts for monitoring normal processes for changes in dispersion. We present comparisons of the average run length performances of these charts. We demonstrate that a CUSUM chart based on the likelihood ratio test for the change point problem for normal variances has an ARL performance that is superior to other procedures. Graphs are given to aid in designing this control chart.

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Authors and Affiliations

  1. Department of Industrial Engineering and Operations, Instituto Tecnológico Autónomo de México, México D.F, C.P. 01000

    CESAR A. Acosta-Mejia

  2. Department of Industrial Engineering, Florida State University, Florida A&M University, 2525 Pottsdamer Street, Tallahassee, FL, 32310-6046, USA

    JOSEPH J. Pignatiello

  3. Research Group, SABRE Decision Technologies, 1 East Kirkwood Blvd., MD 7390 TSG, SouthLake, TX, 76092, USA

    B. VENKATESHWARA Rao

Authors
  1. CESAR A. Acosta-Mejia
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  2. JOSEPH J. Pignatiello
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  3. B. VENKATESHWARA Rao
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Acosta-Mejia, C.A., Pignatiello, J.J. & Rao, B.V. A comparison of control charting procedures for monitoring process dispersion. IIE Transactions 31, 569–579 (1999). https://doi.org/10.1023/A:1007606524244

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