An electronics manufacturer makes remote control devices for interactive-cable-TV systems. The following assembly tasks must be performed on each device.

Task	Description	Predecessor(s)	Time (min.)
A	Place circuit into circuit frame	--	0.50
B	Solder circuit connections to central circuit control	A	0.70
C	Place circuit assembly in device frame	B	0.40
D	Attach circuit assembly to device frame	C	0.30
E	Place and attach display to frame	--	0.30
F	Place and attach keypad to frame	--	0.20
G	Place and attach top body of device to frame	E, F	0.35
H	Place and attach battery holder to frame	D	0.40
I	Place and attach bottom body of device to frame	G, H	0.60
J	Test device	I	0.30

Based on the above diagram, answer the following questions:

a. Illustrate a network diagram of precedence relationships.

(2 marks)

b. Determine the cycle time for the production of 200 units over a ten-hour day.

(2 marks)

c. Determine the theoretical number of workstations needed.

(2 marks)

d. Decide which tasks should be assigned to which workstations.

(2 marks)

e. Determine the efficiency and balance delay of the solution found.