Problems Use the following project information for Problems 1 and 2. Activity Activity Time (weeks) Immediate Predecessor(s) Q&A 3 none B 4 2 B D 5 B E 4 F 3 D G 2 E, F 1. Construct a network diagram using AON notation. > Solution 2. Using the network diagram constructed in Problemi, a. Calculate the completion time for the project. b. Determine which activities are included on the critical path. Use the following project information for Problems 4 through 8. Q& Optimistic Time Estimate Activity (weeks) A Most Likely Time Estimates (weeks) Pessimistic Time Immediate Estimates Predecessor (weeks) (s) 2 3 5 none B 2.5 A 4 5 5 7 8 A D 3 5 7 B, C B, C E 4 7 14 F 2 5 8 D A G 4. 5 6 E H 6 6 8 F I 4. 8 11 G J 2 3 3 HI 4. Using the information given, construct a network diagram using AON notation. 5. Using the information given, calculate the expected time for each of the project activities. > Solution 6. Using the information given, calculate the variance for each of the project activities. 7. Using your results from Problems 4 and 5