Suppose That Six Different E-Readers Were Evaluated by Two Senior

Multiple Choice

Suppose that six different e-readers were evaluated by two senior citizen consumer groups using rankings from 1 (best) to 6 (worst) .What nonparametric method should be used to determine the association between these rankings?

A) Spearman's rho
B) Pearson's rho
C) Wilcoxon Signed-Rank test
D) Mann-Whitney test
E) Wilcoxon's rho