Table IV.

Sign test and wilcoxon rank test

TestAARCARR
Good newsBad newsNo newsGood newsBad newsNo news
Sign test0.751.00.750.110.00**0.00**
Wilcoxon rank test0.200.610.480.070.00**0.00**

Note:

**

p-value at 95% significance level; tests for related samples has been used

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