Lisa manages customer service representatives in a call center. The center's computer system tracks a number of metrics for each employee including the total number of customer calls they complete, the amount of time the service representative spends talking to customers, and the total time the service representative was clocked in each day. The work standard developed by the call center is to complete 150 calls in an 8 3. hour shift. Employee | # Calls Total Time on Total Time Clocked In Completed 165 140 135 Calls S hours 7 hours 30 minutes 8 hours 7 hours 20 minutes |8 hours 8 hours Answer the following questions using the information provided in the table above. Please show vour calculations a. What is the productivity of employee J? (2points) b. What is the efficiency of employee K? (2points) c. What is the percent value added time for employee M? (3points)