Research Article
Statistics at square one. XV--The chi-squared tests (continued).
Br Med J 1976; 2 doi: https://doi.org/10.1136/bmj.2.6034.513 (Published 28 August 1976) Cite this as: Br Med J 1976;2:513This is a PDF-only article. The first page of the PDF of this article appears above.