Question: The director of a large law firm is concerned about absenteeism among the firm paralegals. The attorneys who are assisted by the paralegals have expressed concern that their workloads are overburdened and this is causing problems with their clients.

To analyze the nature of the problem absenteeism information was recorded for 15 days, which is a common cycle for work conditions. Random samples of 64 staff attendance records were logged each day, with data listed below:

We are using three-sigma control limits. Do we need to further investigate the absenteeism among paralegals? Explain.