In a market there are 60 sales persons, out of them 20 are smokers. Find the \( 95 \% \) confidence interval for the population proportion of smokers.
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The sample proportion (\( \hat{p} \)) is the ratio of the number of smokers to the total number of salespersons. Given that there are 20 smokers out of 60 salespersons, the sample proportion is calculated as: \[ \hat{p} = \frac{20}{60} = \frac{1}{3} \approx 0.3333 Show more…
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