Question

In a random sample of 60 adult health-care professionals, 6 were smokers. In a random sample...

In a random sample of 60 adult health-care professionals, 6 were smokers. In a random sample of 65 adults who were not health-care professionals, 15 were smokers. At the 0.01 level of significance test the claim that the health-care professional are less likely to be smokers than people who are not health-care professionals.

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