Automobile magazines often compare models and rate them in various ways. One question that is often asked of car owners, would you buy the same model again? Suppose that a researcher for one magazine asked a random sample of Lexus owners and a random sample of Acura owners whether they plan to buy another Lexus/Acura the next time they shop for a new car. The responses (1 = No, 2 = Yes) were recorded. Do these data allow the researcher to infer that the two populations of car owners differ in their satisfaction levels?
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