Digital Eye must design an assembly line to produce a new line of slim digital cameras. Assembling a single camera required the completion of nine distinct tasks, and information about each of these tasks is provided below:
Task Immediate Predecessors Task Duration (sec.)
A None 10
B A 30
C A 25
D B 18
E B 5
F B 17
G D, E 37
H C, F 30
I H 12
This assembly line operates 8 hours per day to produce 576 digital cameras daily. Digital Eye uses the LPT rule to create the design.
1. What is the cycle time of Digital Eye's assembly line, in seconds?
2. How many workstations are required by this design and what tasks will be done at which workstations?
3. Which workstation enjoys the maximum idle time? How efficient is this design?
4. How does the actual number of workstations required by this design compare to its theoretical minimum number of workstations?

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