2. The work center in the above problem is utilized 80% of the time. What are the hours per week actually worked? 3. A work center consists of 3 machines working 8 hours per day for a 5 -day week. If the utilization is 75% and the efficiency is 120%, what is the rated capacity of the work center? 4. A work center consisting of 4 machines operates 40 hours per week. In a 4-week period, it actually worked 355 hours and produced 475 standard hours of work. a) Calculate the utilization and efficiency of the work center. b) What is the demonstrated weekly capacity of the work center? 5. a) How many standard hours are needed to run an order of 300 pieces if the setup time is 2 hours and the run time is .2 hours per piece? b) How many actual hours are needed at the work center if the efficiency is 125% and the utilization is 85% ? 6. A work center has the following open and planned orders for week 4 . Calculate the total