Mid-P confidence intervals for the Poisson expectation.
- Published Article
Statistics in medicine
- Publication Date
Nov 15, 1994
Conventionally a confidence interval (CI) for the standardized mortality ratio is set using the conservative CI for a Poisson expectation, mu. Employing the mid-P argument we present alternative CIs that are shorter than the conventional ones. The mid-P intervals do not guarantee the nominal confidence level, but the true coverage probability is only lower than the nominal level for a few short ranges of mu. The implications for mid-P confidence intervals of various proposed definitions of two-sided tests for discrete data are discussed.
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The corresponding record at NLM can be accessed at https://www.ncbi.nlm.nih.gov/pubmed/7846419