For those who have not been training, the population’s average time to run a mile is 13 minutes (? = 1.5). A group of students have been training for one month and below are the individual students’ mile run time, measured in minutes at the last training session. Use the data set below to answer the questions.

Student / Mile time
1 / 15
2 / 10
3 / 9
4 / 14
5 / 12

List any dependent, independent, and quasi-independent variable for this data set. There may be none of some types and there may be more than one of others.