Number of people who rated crest highest before reading ad

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Reference no: EM131715917

Question: As part of a test for some advertising copy, a company assembled 120 people who rated four toothpastes. They read several ads (including the ad being tested). Then they rated all four toothpastes again. The data to be analyzed consisted of the number of people who rated Crest highest before reading the ad and the number who rated it highest after reading the ad.

Reference no: EM131715917

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