A manufacturer of bespoke handmade candles employs 2 machine operators and 3 packers to process customer orders. This team of 5 works for 6 hours a day for 5 days a week (Monday-Friday). Together, they make 100 candles per hour which are packed in boxes of 10. A machine operator and a packer require approximately 4 minutes to manufacture and 2 minutes to pack each box of candle.
a. Calculate the utilization of both machine operators and packers.
b. In order to improve productivity, management decided to cross-train both operators and packers to perform both activities. Now, it takes 8 minutes for one individual to manufacture and pack each box of candle. Which of the processes has the greatest utilization rate?