What is indicated by zero differences in a sign test?
A) They provide support for the null hypothesis.
B) They provide evidence that the null hypothesis should be rejected.
C) They are not relevant to the null hypothesis and should be discarded.
D) They indicate that assumptions have been violated and the test should not be done.
Question 2
A researcher is using a repeated-measures study to evaluate the difference between two treatments. If the difference between the treatments is consistent from one participant to another, then the data should produce a ____.
A) small variance for the difference scores and a small standard error
B) small variance for the difference scores and a large standard error
C) large variance for the difference scores and a small standard error
D) large variance for the difference scores and a large standard error
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