If the Test Value for a Wilcoxon Signed-Rank Test W_s

question 36

Multiple Choice

If the test value for a Wilcoxon signed-rank test w_s is 15, the sample size is 12, and the one-tailed test is to be carried out at the α = 0.05 level of significance, should the null hypothesis be rejected? Use the table of critical values for the signed-rank test below.
N
One-tailed,
Α = 0.05
Α = 0.025
Α = 0.01
Two-tailed,
Α = 0.10
Α = 0.050
Α = 0
02
10
11
8
5
11
14
11
7
12
17
14
10
13
21
17
13
14
26
21
16
15
30
25
20

• A) Reject null hypothesis because the test value 15 is less than the critical value 17.
• B) Reject null hypothesis because the test value 15 is greater than the critical value 14
• C) Do not reject null hypothesis because the test value 15 is less than the critical value 17
• D) Do not reject null hypothesis because the test value 15 is greater than the critical value 14

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