Question 2:(12 pts) The following Fig. shows the current processes along with processing times, processing cost, and defect rate A B D Time per unit (mins) 7 12 9 10 Processing cost ($/unit) 5 4 6 3 Defect rate (%) 2 4 8 5 1 a- Identify the bottleneck process in layout? Explain b- Based on the processing cost per unit, how would you arrange the sequence given that processing requirements allow?. Explain and state your assumptions C- Based on both given processing costs, defect rates and assuming that processing requirements allow, re-arrange the sequence. Explain and state your assumptions d- Calculate the average "queue length in front of machine B, C and D given the time per unit (Average number of units waiting in front of these processes)