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CUSUM Control Charts With Variable Sample Size and Sampling Intervals

Summary: [This abstract is based on the authors' abstract. A longer abstract is available on the journal's website.]

Cumulative sum charts with the variable sample size feature and with both variable sample size and variable sampling interval are considered. The ability to detect all but very large process shifts is improved by using either the VSS or VSI feature in a CUSUM control chart. Guidelines for choosing sample sizes and sampling intervals are provided, as are methods for setting up charts for practical application.

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  • Topics:
  • Keywords: Cumulative sum control chart (CUSUM),Control charts
  • Author: Arnold, Jesse C.; Reynolds, Marion R. Jr.
  • Journal: Journal of Quality Technology