A poll of 5000 residents in Brazil, Canada, China, France, Malaysia, South Africa, and the United States asked about what profession they would prefer a marriage partner to have. The choice receiving the highest percent, 16% of the responses, was doctors, nurses, and other health care professionals.
(a) Find the sample proportion and a 95% confidence interval for the proportion of people who would prefer a doctor, nurse, or other health care professional as a marriage partner.
(b) Convert the estimate and the confidence interval to percents.