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[Steps Shown] Ten men compared two brands of razors. One side of the face was shaved by brand A , and the other was shaved by brand B . A "smoothness score"

Question: Ten men compared two brands of razors. One side of the face was shaved by brand A , and the other was shaved by brand B . A "smoothness score" (from 1 to 10) was given by each person for each side. The side on which a given shaver was used was assigned by the flip of a coin and the smoothness scores are shown below.

Calculate the differences d = A score – B score.

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[Steps Shown] Ten men compared two brands of razors. One side of the face was shaved by brand A , and the other was shaved by brand B . A "smoothness score"

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