Balancing type I and type II error probabilities: further comments on proof of safety vs proof of hazard
- 1 January 1990
- journal article
- research article
- Published by Taylor & Francis in Communications in Statistics - Theory and Methods
- Vol. 19 (10) , 3557-3570
- https://doi.org/10.1080/03610929008830397
Abstract
This paper elaborates on earlier contributions of Bross (1985) and Millard (1987) who point out that when conducting conventional hypothesis tests in order to “prove” environmental hazard or environmental safety, unrealistically large sample sizes are required to achieve acceptable power with customarily-used values of Type I error probability. These authors also note that “proof of safety” typically requires much larger sample sizes than “proof of hazard”. When the sample has yet to be selected and it is feared that the sample size will be insufficient to conduct a reasonable.Keywords
This publication has 4 references indexed in Scilit:
- Environmental Monitoring, Statistics, and the Law: Room for ImprovementThe American Statistician, 1987
- A Study of Statistical Aspects of the Love Canal Environmental Monitoring StudyThe American Statistician, 1986