Study Questions

Short Answer

1. What is one major disadvantage of nonparametric tests?
Ans: The disadvantage of nonparametric tests is that the Type II error is higher for nonparametric tests than parametric tests.
Learning Objective: 16-1: What is the difference between a parametric and a nonparametric test?
Cognitive Domain: Comprehension
Answer Location: Parametric Versus Nonparametric Tests

2. When is a \chi ^{2} test usually used?
Ans: A \chi ^{2} test is usually used when you want to test hypotheses about categorical variables.
Learning Objective: 16-1: What is the difference between a parametric and a nonparametric test?
Cognitive Domain: Knowledge
Answer Location: Observed Versus Expected Frequencies