An electronics manufacturer makes remote control devices for interactive-cable-TV systems. The following assembly tasks must be performed on each device. Task / Predecessor(s) / Time (min.) A / / 0.50 B / A / 0.70 C / B / 0.40 D / C / 0.30 E / / 0.30 F / / 0.20 G / E, F/ 0.35 H / D / 0.40 I / G, H / 0.60 J / I / 0.30

a. Draw the precedence diagram for this problem. b. What cycle time will allow the production of 200 units over a ten-hour day? c. What is the theoretical number of workstations needed? d. Balance this assembly line using the heuristic most following tasks. e. Determine the balancing efficiency.