A union wants to determine the preferences of its members before negotiating with management. Ten union members are randomly selected, and an extensive questionnaire is completed by each member. The responses to the various aspects of the questionnaire will enable the union to rank in order of importance the items to be negotiated. The rankings are shown in the next table. Conduct a nonparametric test to determine whether evidence exists that the probability distributions of ratings differ for at least two of the four negotiable items. Use α = .05.

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Job Fringe Benefits Shorter More Pay Person Stability Hours 2 3 2 3 4 2 3 2 2 3 4 2.5 4 4 4 2 3 3 4 6. 2.5 4 8 3 1.5 2 1.5 3 1 10 ম 1.