One survey showed that among 785 randomly selected subjects who completed four years

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of colleg, 18.3% smoke.? A) Construct the 98% confidence interval for the true percentage of smokers among all people who completed four years of college.

B) Based on the results, does the smoking rate for those with four years of college differ substantially from the 27% rate for the general population? If so how does it differ?
 
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