Question: Refer to Exercise 13.49. The NCPA conducted another study, this one on alcohol. They randomly sample low-income and middle-income alcohol drinkers and determined how much

Refer to Exercise 13.49. The NCPA conducted another study, this one on alcohol. They randomly sample low-income and middle-income alcohol drinkers and determined how much each spends annually on alcoholic drinks. Can we infer that low-income alcoholic drinkers spend more than middle-income?

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