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An Approach to Controlling Process Variability

Summary: The design of statistical procedures to monitor and control the variability of production processed has received comparatively little attention in the literature. This paper considers the use of a standard deviation Control Chart for this purpose.The derivation and some special features of economically optimal procedure designs are outlined. On the basis of one such feature, a simple scheme for the determination of approximately optimal designs is devised-the optimality criterion assumed is that of maximizing the long-run average profit per produced item.

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  • Topics:
  • Keywords: Control charts
  • Author: von Collani, E.; Sheil, J.
  • Journal: Journal of Quality Technology