If the Test Value for a Wilcoxon Signed-Rank Test $w _ { \mathrm { S } }$

question 15

Multiple Choice

If the test value for a Wilcoxon signed-rank test $w _ { \mathrm { S } }$ is 15 , the sample size is 12 , and the one-tailed test is to be carried out at the $\alpha = 0.05$ level of significance, should the null hypothesis be rejected? Use the table of critical values for the signed-rank test below.

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

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