Please answer ALL parts

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 information in the table, Draw the precedence diagram and assign tasks. a. Based on "longest operating time", what station should task E be assigned to? b. What is the efficiency and idle time of the assembly line, based on the actual grouping and cycle time? c. What is the theoretical minimum number of workstations? d. Is there an ability to improve the cycle time? If so, what is the cycle time, efficiency, and idle time? \begin{tabular}{|l|l|l|} \hline Task & PerformanceTime(min) & Predecessors \\ \hline A & 1 & -- \\ \hline B & 1 & A \\ \hline C & 2 & A \\ \hline D & 1 & C \\ \hline E & 3 & C \\ \hline F & 1 & C \\ \hline G & 1 & D, E, F \\ \hline H & 2 & B \\ \hline I & 1 & G, H \\ \hline \end{tabular}