Instructors often suspect that the better students finish tests early. To test this hypothesis an instructor noted both the order (ORDER) and actual time (TIMES) in which students in three sections (SECTN) of a class, numbering 29, 28, and 28 students, respectively, handed in a particular test. The dependent variable is the students' average grade (AVERG) at the end of the semester. The data for this exercise are found on the data disk in file FW07P12. For each section as well as for the entire data set perform the regression of final average on both time and order. Do the results confirm instructors' impressions?