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Researchers in retail studies wanted to ?nd out how children and adults react to companies' pricing tactics. They looked at a random sample of 44 10th-grade stu- dents, a random sample of pretested adults consisting of 42 people, and a third sam- ple of 71 adults. For each person, they evaluated the response to a pricing tactic. The reported overall level of signi?cance was p 0.01. A further analysis of differences between every pair of groups was reported as all p <>0.01.9 Interpret these reported ?ndings. What were the degrees of freedom for Factor, Error, and Total?

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