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In: Statistics and Probability

A crossover trial is a type of experiment used to compare two drugs. Subjects take one...

A crossover trial is a type of experiment used to compare two drugs. Subjects take one drug for a period of time, then switch to another. The responses of the subjects are then compared using matched-pair methods. In an experiment to compare two pain relievers, seven subjects took one pain reliever for two weeks, then switched to the other. They rated their pain level from 1 to 10, with larger numbers representing higher levels of pain. Can you conclude that the mean pain level is less with drug B? Use significance level 0.10. (Paired samples).

Subject 1 2 3 4 5 6 7
Drug A 6 3 4 5 7 1 4
Drug B 5 1 5 5 5 2 2

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Expert Solution

No, pain is not less with drug B

orchestra answered 2 years ago
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