NO.PZ2022123001000132
问题如下：
Compared to nonparametric tests, parametric tests:
选项：
A.Rely on assumptions regarding the distribution of the population B.Are used in the situation that there are outliers C.Can be used when testing whether a sample is random or not解释：
We primarily use nonparametric procedures in four situations: (1) when the data weuse do not meet distributional assumptions, (2) when there are outliers, (3) whenthe data are given in ranks or use an ordinal scale, or (4) when the hypotheses we areaddressing do not concern a parameter. B and C are suitable for nonparametric tests
1，a,参数检验不是不要去总体样本符合正态分布吗？
2，请问c选项怎么理解，可以用一个简单的例子说明一下吗？
谢谢