Understanding Basic Statistics 6th Edition by Charles Henry Brase,Corrinne Pellillo Brase

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L ifestyle: Smoking In a survey of 1000 large corporations, 250 said that, given a choice between a job candidate who smokes and an equallty qualified non- smoker, the nonsmoker would get the job (USA Today).
(a) Let p represent the proportion of all corporations preferring a nonsmok­ing candidate. Find a point estimate for p.
(b) Find a 0.95 confidence interval for p.
(c) Interpretation As a news writer, how would you report the survey results regarding the proportion of corporations that hire the equally qualified non- smoker What is the margin of error based on a 95% confidence interval