The manager of a computer repair service wants to determine whether there is a difference in the time it takes 4 technicians to repair 3 different brands of disk drives. The data shows the time (in minutes) it took each technician to repair the disk drives. Answer the following questions by using the best technique learned in class. Perform the test at the alpha of .10:

1. Is there a different in the technicians' time to repair?
2. Is there a difference in the disk drives
3. Is there a difference in interaction effect between technicians and disk drives
4. Briefly discuss the test result of (a,b and c) with respect to any anomalies or unusual results that need further study for explanation.