The Tool Department at a Large Manufacturing Corporation Provides Tools

The tool department at a large manufacturing corporation provides tools to factory employees on demand.The tool department has a variable demand.According to the manager,the demand ranges from 200-400 tools per day,with an average of 300 each day.Lila,the tool department manager,works 8 hours daily,five days weekly.Each order is for one tool and each tool takes Lila 1 minute to retrieve and notate in the log.
Required: (a) Calculate the average waiting time in minutes,and (b) the cycle time for each order.(c) Management is considering expanding Lila's duties to include logging and retrieving precision tools also.She anticipates that there would be an average of 13 precision tool requests per day,each precision tool order would take 3 minutes to complete.
Required
How would this change in Lila's duties affect the average wait time?

A) 1 minute; (b) 2.3 minutes; (c) It will increase wait time by 0.53 minutes.
B) 0.83 minutes; (b) 3.83 minutes; (c) It will increase wait time by 0.65 minutes.
C) 2.36 minutes; (b) 3.48 minutes; (c) It will increase wait time by 2.76 minutes.
D) 1.5 minutes; (b) 3.2 minutes; (c) It will decrease wait time by 1.1 minutes.
E) 4 minutes; (b) 5.2 minutes; (c) It will increase wait time by 5.3 minutes.