9.17 The Mach 10 is a one-person sailboat manufactured by Creative Leisure. The final assembly plant is in Cupertino, California. The assembly area is available for production of the Mach 10 for 200 minutes per day. (The rest of the time it is busy making other products.) The daily demand is 60 boats. Given the following information, Task Performance Time Task Must Follow Task Listed Below A 1 ? B 1 A C 2 A D 1 C E 3 C F 1 C G 1 D, E, F H 2 B I 1 G, H a. Draw the precedence diagram and assign tasks using five workstations. b. What is the efficiency of the assembly line, using your answer to (a)? c. What is the theoretical minimum number of workstations? d. What is the idle time per boat produced