In a survey of 3,769 adults concerning complaints about restaurants, 1,482 complained about dirty or ill-equipped bathrooms and 1,217 complained about loud or distracting diners at other tables. Complete parts (a) through (b) below.

a. Construct a 90% confidence interval estimate of the population proportion of adults who complained about dirty or ill-equipped bathrooms. ______________

(Round to four decimal places as needed.)

b. Construct a 90% confidence interval estimate of the population proportion of adults who complained about loud or distracting diners at other tables.

______________

(Round to four decimal places as needed.)