Eight students need to be assigned to four dorm rooms at Faber College. Based on incompatibility measurements, the cost incurred for any pair of students rooming together is shown in the file...

Eight students need to be assigned to four dorm rooms at Faber College. Based on incompatibility measurements, the cost incurred for any pair of students rooming together is shown in the file P05_76.xlsx. How should the students be assigned to the four rooms to minimize the total amount of incompatibility?