Parking at the large university has become a extremely big problem. University administrators are interested in estimating the average parking time (e.g. the time it takes a student to find out a parking spot) of its students. An administrator inconspicuously followed 260 students and carefully recorded their parking times. Determine the population of interest to university administrator.
a. the parking times of the entire set of students that park at the university
b. the entire set of staff, faculty and students
c. the parking times of 260 students from whom the data were collected
d. students that park at the university between 9 and 10 am on wednesdays