Students Enrolled in an Introductory Statistics Course at a University $90 \%$

Students enrolled in an introductory statistics course at a university were asked to take a survey that indicated whether the student has a visual or verbal learning style. Of the 39 students who took the survey, 25 were judged to have a visual learning style and 14 were considered verbal learners.
-Determine a $90 \%$ confidence interval for the population proportion who are visual learners at this university.