Bob Slocum began building birdhouses in his garage workshop years ago as a relaxing hobby to be enjoyed evenings and weekends. He has built dozens of them and given them to friends and family as gifts, and they have been so pleased with his workmanship that they have often remarked that he should go into business. He recently decided to give it a try and developed a web site to sell his birdhouses. He still has his full-time job (just in case!) and will have his wife and his three children help him to build the birdhouses for eight hours each weekend. An overview of the birdhouse production process is shown below.
Il. sand all surfaces of each piece 120 sec. Ill. glue pieces together to form birdhouse 85 sec. IV. drill holes, insert perch, and hang birdhouse 45 sec l. cut pieces from pine board V. paint birdhouse 70 sec. 90 sec.
1. What is the average cycle time for the process?
2. If the family works eight hours this weekend as planned, how many birdhouses would you expect them to complete?
3. Calculate the expected utilizations for workstation I (your answer must be between 0 and 1).