Assignment #3 Chapter 5 1. Describe what an activity \"estimated duration\" is. 2. Why might a contractor prefer to state a project completion date in terms of number of days after the project starts rather than a specific date? Give an example of an instance where this would be appropriate. 3. Why is it important to determine the critical path of a project? What happens if activities are delayed? What if they are accelerated? 4. Calculate the ES, EF, LS, and LF times and the slack for each activity in the gure below and identify the critical path for the project. Can the project be completed in 40 weeks? 5. Why is the scheduling of IS projects so challenging? What are some of the common problems that push IS projects beyond their due dates? 6. Why should a project have a regular reporting period? Should all projects have the same reporting period? Why or why not