Parking at a large university has become a big problem. The university’s administrators want to determine the average parking time of its students. An administrator inconspicuously followed 250 students and carefully recorded the time it took them to find a parking spot.

a. What is the population of interest to the university administration?

b. Identify the sample of interest to the university administration.

c. What is the experimental unit of interest to the university administration?

d. What is the variable of interest to the university administration?