ter a year. The A production facility has a new contract to build 45.000 office printers a year. The standard time to produce a printer is 45 minu to produce a printer is 45 minutes. If each worker is employed 2000 he facility to produce this many hours per year, how many workers are needed by the facility to produce this printers? (6 Points) 10. The auto dealership employs a total of 10 mechanics that specialize in engine tune ups. The dealership runs one shift per day for its repair shop and is open 6 days a week. Each shift is 8 hours long. The average engine tune up requires 2 direct labor hours to complete. What is the "plant capacity" of the tune up staff for this dealership? That is, how many tune ups can the dealership handle each week? (6 Points) 7. The foreman in the welding department in the welding department wanted to know what value of allowance to use for a particular section of the shop. A work sampling study was authorized. Two activity categories were considered: (1) welding and other productive work, and (2) personal time, rest breaks, and delays. Over a four-week period (40 hours/week), 125 observations were made at random times. Each observation captured the category of activity of each of eight welders in the shop section of interest. Results indicated that category 2 constituted 33% of the total observations. (a) Define the limits of a 96% confidence interval for activity 2. (b) If a total of 725 work units were produced during the 4 weeks, and all category 1 activity was devoted to producing these units, what was the average time spent on each unit? (C) How many more observations need to be taken to achieve a confidence interval of 33% + 1.0%? (18 points)