1)
Below is the screenshot of process flow chart -
2)
Number of hairstylist = 3
Total Processing Time = 10+18+2 = 30 minutes
Capacity Per Hour = 2 customer per Hour
Capacity per Hour by three hairstylist = 3*2 = 6 customers per hour
So, maximum 6 customers can be served in an hour.
3)
Arrival Rate = 1 per hour
Service Rate = 6 per hour
Utilization = 1/6 = 16.67%
4)
Lulu Capacity per hour = 60/(3+2) = 12 customer per hour
Average Time on single customer for Hairstyling = 18+10 = 28 minutes
Average Capacity per hour = 60/28 = 2.14 customer per hour
Total Capacity of 3 hairstylist = 2.14*3 = 6.42 customers per hour
Hence, capacity of 3 hairstylist will increased to 6.42 customers per hour.
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