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Use the Wilcoxon matched-pairs signed rank test to determine whether there is a significant difference between...

Use the Wilcoxon matched-pairs signed rank test to determine whether there is a significant difference between the related populations represented by the data below. Assume a 5% level of significance and (differences = before - after).

Before    After
5.6        6.4
1.3        1.5
4.7        4.6
3.8        4.3
2.4        2.1
5.5        6.0
5.1        5.2
4.6        4.5
3.7        4.5

What is the value of T-?  

What is the value of T+?  

What is the test statistic, T?  

Using the table of Critical Values, what is the critical value for this study?

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orchestra answered 2 years ago
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