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The Negative Binomial Model for Counts in Units of Varying Size

Summary: Consider count data which arises from independent observations, but on units of varying size. The counts are assumed to follow a negative binomial distribution. Moment estimators for the parameters K and P are presented, but the procedure for estimating K involves an iterative technique. Prediction intervals for control charting purposes, as well as confidence intervals for the mean, are considered.

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  • Topics: Data Quality
  • Keywords: Data collection,Estimation,Prediction intervals
  • Author: Sheaffer, R.L.; Leavenworth, R.S.
  • Journal: Journal of Quality Technology