Please help with all parts for a thumbs up.

Question 4 1 pts 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 Place and attach bottom body of device 10.60 Task Description Predecessor(s) Time (min.) Place circuit into circuit frame 0.50 B Solder circuit connections to central circuit control A 0.70 * 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 EF 0.35 H Place and attach battery holder to frame D 0.40 Place and attach bottom body of device to frame GH 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. What is the actual number of stations? [Select) e. Was there an opportunity to improve the balance of the line based on cycle time? ( Select) If so, what is the new cycle time, idle time and efficiency? [Select) f. Based on your answer to e. what is the total idle time over the 10 hour work day, in minutes? [Select)