Problem 3 A dress-making operation is being designed as an assembly line. The table below shows the tasks that need to be performed their task times, and preceding tasks. Tasks Description Immediate Predecessor A NONE NONE B C D E Cut dress body Cut sleeves Cut collar Sew dress body Sew sleeves to dress Sew collar to dress Hem dress Package dress NONE A B, D C D D, E, F G Task Time (in seconds) 30 40 20 100 25 50 50 90 F G H a. Draw a precedence diagram that shows the precedence relationships among tasks for this assembly operation. b. If 240 dressers are to be assembled in a 8-hour work day, what is the cycle time? c. What is the minimum number of workstations required to balance this assembly line? d. Assign tasks to workstations using the most-following-tasks rule as the primary rule and the ranked-positional-weight rule as the secondary (breaking tie) rule. e. Compute the balance efficiency and percent delay (percent idle time)