A One-Tailed Sign Test Is Used to Test for Differences

question 17

Multiple Choice

A one-tailed sign test is used to test for differences between two populations at the 0.10 level of significance. There were nine plus signs and five minus signs. What is the decision regarding the null hypothesis?

• A)Fail to reject the null hypothesis.
• B)Reject the null hypothesis.
• C)Neither reject nor fail to reject the null hypothesis.
• D)Should have used a paired t-test.

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