15.26 Property Values II In Exercise 15.17, you used the sign test to determine whether the data provided sufficient evidence to indicate a difference in the distributions of property assessments for assessors A and B.

a. Use the Wilcoxon signed-rank test for a paired experiment to test the null hypothesis that there is no difference in the distributions of property assess- ments between assessors A and B. Test by using a value of a near 0.05.

b. Compare the conclusion of the test in part a with the conclusions derived from the test in Exercise 10.47 and the sign test in Exercise 15.17. Explain why these test conclusions are (or are not) consistent.