Significance tests. Part 3.
A discussion of basic parametric statistical tests of sample proportions and frequencies is concluded with a description of the chi-squared test. The treatment of distribution-free or non-parametric data is then illustrated with examples of the sign test and Wilcoxon's two-sample rank test.
Bulman
J S
JS
Osborn
J F
JF
D002648:Child; D003773:Dental Plaque / Q000517:prevention & control; D003802:Dentifrices / Q000627:therapeutic use; D006801:Humans; D009910:Oral Hygiene; D012107:Research Design; D013223:Statistics as Topic
D003802:Dentifrices