Question: 3. Outline the basic logic and ideas behind the rank-sum test. Under what conditions would you use the rank-sum test and not the sign test?

3. Outline the basic logic and ideas behind the rank-sum test. Under what conditions would you use the rank-sum test and not the sign test? What assumptions must be made in order to use the rank-sum test? List two advantages the ranksum test has that the methods of Section 8.5 do not have. List some advantages the methods of Section 8.5 have that the rank-sum test does not have.

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