Question: during a particular 40hour week of an automated production operation...
During a particular 40-hour week of an automated production operation, 336 acceptable
(non-defective) parts and 22 defective parts were produced. The operation cycle consists of
a processing time of 5.73 min, and a part handling time of 0.38 min. Every 60 parts, a tool
change is performed, and this takes 7.2 min. The machine experienced several breakdowns
during the week. Determine (a) hourly production rate of acceptable parts, (b) scrap rate,
and (c) availability (proportion uptime) of the machine during this week.