Use the Wilcoxon matched-pairs signed rank test to determine whether there is a significant difference between the related populations represented by the matched pairs given here. Assume α = .05.

Group 1 Group 2

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