Haas C N, Heller B
Pritzker Department of Environmental Engineering, Illinois Institute of Technology, Chicago 60616.
Appl Environ Microbiol. 1988 Dec;54(12):2996-3002. doi: 10.1128/aem.54.12.2996-3002.1988.
A test of the validity of the Poisson assumption for sample replicates in dilution series of finite length is proposed and its properties are examined by using Monte Carlo simulation. The test is based on an examination of the number of intervals between complete sterility and complete infection in a series. The test is applied to a data set of routine influent coliform samples at the Chicago water supply intake. By this test, the data set is rejected as being drawn from a Poisson replication. Tables for direct application to a 3-dilution, 5-tube decimal series are presented, and their application is illustrated.
本文提出了一种针对有限长度稀释系列中样本重复的泊松假设有效性的检验方法,并通过蒙特卡罗模拟对其性质进行了研究。该检验基于对一系列中完全无菌和完全感染之间间隔数的考察。该检验应用于芝加哥供水取水口常规进水大肠菌群样本的数据集。通过此检验,该数据集被拒绝为来自泊松重复抽样。文中给出了直接应用于三稀释、五管十进制系列的表格,并说明了其应用方法。