Confidence intervals for the Poisson distribution

Fuente: arXiv
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Main Author: Porter, Frank C.
Format: Preprint
Published: 2025
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author Porter, Frank C.
author_facet Porter, Frank C.
contents The Poisson probability distribution is frequently encountered in physical science measurements. In spite of the simplicity and familiarity of this distribution, there is considerable confusion among physicists concerning the description of results obtained via Poisson sampling. The goal of this paper is to mitigate this confusion by examining and comparing the properties of both conventional and popular alternative techniques. We concern ourselves in particular with the description of results, as opposed to interpretation. After considering performance with respect to several desirable properties we recommend summarizing the results of Poisson sampling with confidence intervals proposed by Garwood. We note that the p-values obtained from these intervals are well-behaved and intuitive, providing for consistent treatment. We also find that averaging intervals can be problematic if the underlying Poisson distributions are not used.
format Preprint
id arxiv_https___arxiv_org_abs_2509_02852
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Confidence intervals for the Poisson distribution
Porter, Frank C.
Data Analysis, Statistics and Probability
The Poisson probability distribution is frequently encountered in physical science measurements. In spite of the simplicity and familiarity of this distribution, there is considerable confusion among physicists concerning the description of results obtained via Poisson sampling. The goal of this paper is to mitigate this confusion by examining and comparing the properties of both conventional and popular alternative techniques. We concern ourselves in particular with the description of results, as opposed to interpretation. After considering performance with respect to several desirable properties we recommend summarizing the results of Poisson sampling with confidence intervals proposed by Garwood. We note that the p-values obtained from these intervals are well-behaved and intuitive, providing for consistent treatment. We also find that averaging intervals can be problematic if the underlying Poisson distributions are not used.
title Confidence intervals for the Poisson distribution
topic Data Analysis, Statistics and Probability
url https://arxiv.org/abs/2509.02852