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?
(1). Use the Wilcoxon matched-pairs signed rank test (small
sample size) to determine whether there is a significant difference
between the related populations represented by the matched pairs
given here. Assume a = .05 (Written).
Group1
Group2
d
5.6
6.4
-0.8
1.3
1.5
-0.2
4.7
4.6
0.1
3.8
4.3
-0.5
2.4
2.1
0.3
5.5
6
-0.5
5.1
5.2
-0.1
4.6
4.5
0.1
3.7
4.5
-0.8