_____ statistical tests are a class of statistics that,in general,make few,if any,distributional assumptions
A)nonparametric
B)distribution-free
C)parametric
D)a and b

Question

Quizplus · Accepted Answer

Nonparametric and distribution-free tests are used when information about the underlying distribution of the data is unavailable or unreliable. These tests do not make any distributional assumptions and are therefore considered flexible and robust. Parametric tests, on the other hand, assume that the data follows a specific distribution, such as normal or Poisson, and may not be appropriate when these assumptions are violated. Therefore, both nonparametric and distribution-free tests are considered to be more flexible and generally preferred when distributional assumptions cannot be met.

_____ Statistical Tests Are a Class of Statistics That,in General,make