An electronics manufacturer makes remote control devices for interactive-cable-TV systems. The following assembly tasks must be performed on each device. Task Description Predecessors) Time (min.) IA 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 0.30 E Place and attach display to frame - 0.30 F Place and attach keypad to frame 0.20 Place and attach top body of device to G frame EF 0.35 H Place and attach battery holder to frame D 0.40 1 Place and attach bottom body of device to frame G H 0.60 Test device 0.30 Draw the precedence diagram for this problem, then determine the following: a What is the sum of the task times? Select minutes b. What cycle time will allow the production of 200 units over a ten-hour day? minutes Select c. What is the theoretical number of workstations needed? Select] d. Balance this assembly line using the heuristic longest operation time, what is the actual number of station Se