In a survey of 3,935 ?travelers, 1,519 said that location was very important for choosing a hotel and 1,183 said that reputation was very important in choosing an airline.
(a) Construct a 90?% confidence interval estimate for the population proportion of travelers who said that location was very important for choosing a hotel.
(b) Construct a 90% confidence interval estimate for the population proportion of travelers who said that reputation was very important in choosing an airline.