Problem l- clearly write and address each question. Show your work. The following project information includes the project activities, activity durations and workers assigned to each activity (20 points). Activity IPA A B A A D A E B F B,C G D,E,F Duration Laborers 2 2 4 2 6 3 9 5 5 4 7 1 3 5 a) Draw the precedence network, perform the time calculations and identify critical path (5 pts) | b) Create a resource profile. (5 pts) c) Assuming that your company only has 10 workers available and wants to minimize any unnecessary fluctuations in their schedule, level the resources for the project and show the new resource usage profile below. (5 pts) d) What activities were changed and how were they changed to accomplish the new schedule shown above? (5 pts)