According to a recent survey of 1,200 people, 61% feel that the president is doing an acceptable job. We are interested in the population proportion of people who feel the president is doing an...

According to a recent survey of 1,200 people, 61% feel that the president is doing an
acceptable job. We are interested in the population proportion of people who feel the
president is doing an acceptable job. Construct a 90% confidence interval for the population
proportion of people who feel the president is doing an acceptable job.