Bulman J S, Osborn J F
Br Dent J. 1989 Apr 8;166(7):261-4. doi: 10.1038/sj.bdj.4806791.
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.
对样本比例和频率的基本参数统计检验的讨论以卡方检验的描述作为结束。然后通过符号检验和威尔科克森两样本秩和检验的例子来说明对无分布或非参数数据的处理。
