Looking back at Exercise 11, instead of comparing two very similar stores, suppose the researchers had compared purchases at two car dealerships: one that specializes in new Italian sports cars and another that carries used domestic vehicles. Would the pooled f-test be a good choice here? Why or why not? Which test or confidence interval would be appropriate for testing whether the mean purchase amounts at the two dealerships is the same?
In Exercise 11

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Walmart Target 85 y$45 $53 s $21 $19 80