A computer repair service has a design capacity of 80 repairs per day, an effective capacity of 64 repairs per day, and an actual output of 62 repairs per day. The manager would like to increase the number of repairs per day. Which of the following factors would you recommend that the manager investigate: quality problems, absenteeism, or scheduling and balancing? Explain your answers.
NOTE: This is a quantitative question and requires the use of a mathematical model