- Question 5, parts a-d. Recreate the project network in the worksheet and complete with a forward pass and a backward pass. Use the completed network graph to answer parts a through d. For part d, use an Excel function to answer the question.

5. Building a bookstore consists of six major activities. According to the knowledge of activities and their immediate predecessors, the project network is drawn below: A E Start Finish B Assume that the activity time estimates (in days) for the bookstore construction project are MOST EXPECTED ACTIVITY OPTIMISTIC PROBABLE PESSIMISTIC TIME VARIANCE A hidden hidden hidden 4 0.6 B hidden hidden hidden 5 0.5 C hidden hidden hidden 6 0.1 D hidden hidden hidden 10 0.3 E 2 3 7 hidden hidden hidden 8 0.2