Question

A random sample of eight pairs of twins was randomly assigned to treatment A or treatment B. The data are given in the following table.
a. Is there significant evidence that the two treatments differ using an α = .05 paired t test.
b. Is there significant evidence that the two treatments differ using an α = .05 sign test.
c. Do your conclusions in parts (a) and (b) agree?
d. How do your inferences about the two treatments based on the paired t test and based on the sign test differ?


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  • CreatedNovember 21, 2015
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