According to the National Center for Health Statistics, 19.7% of adults are smokers. A random sample of 250 adults is ob

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According to the National Center for Health Statistics, 19.7% of adults are smokers. A random sample of 250 adults is ob

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According To The National Center For Health Statistics 19 7 Of Adults Are Smokers A Random Sample Of 250 Adults Is Ob 1
According To The National Center For Health Statistics 19 7 Of Adults Are Smokers A Random Sample Of 250 Adults Is Ob 1 (30.18 KiB) Viewed 77 times
According to the National Center for Health Statistics, 19.7% of adults are smokers. A random sample of 250 adults is obtained. (a) Describe the sampling distribution of p^, the sample proportion of adults who smoke. (b) In a random sample of 250 adults, what is the probability that at least 50 are smokers? (c) Would it be unusual if a random sample of 250 adults' results in 18% or less being smokers?
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