A 0.5 1 1 2. Given below are additional details for the Evergreen Company's construction project, i.e. three time estimates. Activity Optimistic Most Likely Pessimistic 2 B 2 2.5 2.5 3 3.5 D 1 2 3 E 0.9 1 1.1 F 0.5 1.5 a) Calculate the expected completion times and completion variances for each activity. b) What are the expected days to completion now for Evergreen? c) Compute the variance and standard deviation of the Evergreen project's completion time. d) What is the probability that the Evergreen Company's project can be completed in 6.5 days? c) What would be Evergreen Company's completion days if we needed a 95% confidence level? Which noncritical activities should Evergreen Company monitor closely? Why? HW1 1. Evergreen Company wants to construct a new office building. The company has contracted a construction management contractor for this projects. Given below are the details of a construction project. Activity Predecessors) Duration (days) A A B D E A B B,C E a Construct the project network (AON) diagram for Evergreen Company and list all possible activity paths and their duration b) Determine Evergreen Company's critical path(s). What is the duration of project competition? Determine the ES, EF, LS, LF, and floats for each activity. .) Construct a Gantt chart for Evergreen Company's project. 2. Given below are additional details for the Evergreen Company's construction project, i.e. three time estimates. Activity Most Likely Pessimistic Optimistis 0.5 1 25 1 2 3 2.5 B D E F 1 3.5 3 1.1 1.5 0.9 0.5 Calculate the expected completion times and completion variances for each activity. b) What are the expected days to completion now for Evergreen? Compute the variance and standard deviation of the Evergreen project's completion time. What is the probability that the Evergreen Company's project can be completed in 6.5 days? What would be Evergreen Company's completion days if we needed a 95% confidence level? o Which noncritical activities should Evergreen Company monitor closely? Why