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 IB 0.40 D Attach circuit assembly to device framec 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 IE, F 0.35 | Place and attach battery holder to frame D 0.40 1 Place and attach bottom body of device to frame IGH 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? [Select] minutes 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 stations? [Select] e. What is the efficiency based on your answer to letterd? Select] f. How much idle time is in this process based on the longest operation time? Select] minutes