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In general, the t test for correlated groups is a more powerful test than the sign test. Is this statement true? Explain why? Can you
In general, the t test for correlated groups is a more powerful test than the sign test. Is this statement true? Explain why? Can you think of situations in which the sign test might be more powerful than the t test for correlated groups (assume N is the same for both tests, etc.)?
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