According to a governmentagency, 16.2% of the population of a certain country smoked in 2016. In 2018, a random sample of 638 citizens of that country wasselected, 90 of whom smoked. Complete parts a through c.

a. Construct a 95% confidence interval to estimate the actual proportion of people who smoked in the country in 2018.

The confidence interval has a lower limit of

nothing

and an upper limit of

nothing

.

(Round to three decimal places asneeded.)