Problem 17-5 (Static) For each of the problems listed, determine the following quantities for each activity: the earliest start time, latest start time, earliest finish time, latest finish time, and slack time. List the critical activities, and determine the expected duration of the project. a. Activity-on-arrow diagram 5 9 2 10 A 8 3 2 7 10 8 12 6 11 6 5 4 Summary: Activity ES EF LS LF Slack 1-2 1-3 2-4 2-5 3-6 47 58 6-9 7-10 8-10 9-11 10-12 11-12 The critical path is The expected project duration is b. Activity-on-node diagram 3 18 4 10 5 5 13 9 2 3 9 11 7 Summary: Activity ES EF LS LF Slack 1 2 3 4 5 6 7 8 9 The critical path is The expected project duration is