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...

Extracted text: 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?