In 2008, A university in the Midwestern United States surveyed its full-time first-year students after they completed the first semester. Surveys were electronically distributed to all 3,727 students, and responses were obtained from 2,821 students. Of the students surveyed, 90.1% indicated that they had studied with other students, and 57.1% indicated that they had tutored another student. The report also noted that 61.3% of the students surveyed came late to class at least once, and 45.8% admitted to being bored in class at least once.
a. Describe the population of interest
b. Describe the sample that was collected
c. Describe a parameter of interest
d. Describe the statistic used to estimate the parameter in (c).