ASQ

Exclusive Content & Downloads from ASQ

Acceptance Control Charts Based on Normal Approximations to the Poisson Distribution

Summary: An acceptance control charting scheme is investigated for the case in which observations consist of the number of nonconformities seen when a process is observed for a certain fixed length of time. The counts are assumed to have a Poisson distribution. Two normal approximations for finding the optimum sample size and control limit are compared to the exact values found through the use of Poisson (or chi-squared) probabilities. Recommendations for practical usage are made as a result of a numerical study.

Anyone with a subscription, including Site and Enterprise members, can access this article.


Other Ways to Access content:

Join ASQ

Join ASQ as a Full member. Enjoy all the ASQ member benefits including access to many online articles.

Subscribe to Journal of Quality Technology

Access this and ALL OTHER Journal of Quality Technology online articles. You'll also receive the print version by mail.

  • Topics: Sampling
  • Keywords: Acceptance sampling,Control charts,Normal distribution,Poisson distribution
  • Author: Mhatre, Suresh; Schaeffer, Richard L.; Leavenworth, Richard S.
  • Journal: Journal of Quality Technology