The director of graduate studies at a large college of business would like to predict the grade point average (GPA) of students in an MBA program based on the Adjusted Graduate Management Admission Test (AGMAT) score. A sample of 8 students who had completed 2 years in the program is selected. The results are AGMAT: 11,20,42,35,26,44,32,30 and the corresponding GPA values are 4,8,9,6,8,8,7,6. Predict the GPA for a student with a AGMAT score of 28.