1.In hypothesis testing, the _____________ is the critical assumption, the assumption which is actually tested.

a.research hypothesis

b.null hypothesis

c.assumption of a normal sampling distribution

d.assumption that the sample was randomly selected

2.The research hypothesis (H1) typically states what the researcher expects to find and

a.contradicts the null hypothesis.

b.verifies on the null hypothesis.

c.modifies the null hypothesis.

d.is unrelated to the null hypothesis.

3.The research and null hypotheses _________ each other.

a.contradict

b.complement

c.amplify

d.rescind