In a random sample of 500 students, 80% say they have a part-time job. An approximate 95% confidence
interval for the proportion of students with part-time jobs is:
(1) (0.758; 0.842)
(2) (0.765; 0.835)
(3) (0.770; 0.830)
(4) (0.800; 0.835)
(5) (0.782; 0.819)