这题不太理解

问题如下：

Question Given a large random sample, which of the following types of data are least appropriately analyzed with nonparametric tests?

选项：

A.Signed data (e.g., number of positives and negatives) B.Ranked data (e.g., 1st, 3rd) C.Numerical values (e.g., 28.43, 79.11)

解释：

Solution

C is correct. Nonparametric tests are primarily concerned with ranks, signs, or groups, and they are used when numerical parameters are not known or do not meet assumptions about distributions. Even if the underlying distribution is unknown, parametric tests can be used on numerical data if the sample is large.

A is incorrect because nonparametric tests can be used on grouped or counted data.

B is incorrect because nonparametric tests can be used on ranked data.