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 10 8 3 5 12 10 11 ES EF LS LF Slack Summary: Activity 1-2 4 7 13 2 12 8 1-3 2-4 2-5 3-6 4-7 5-8 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 4 18 10 5 5 13 3 2 9 8 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