23. Using the following table, which describes a CPM schedule, answer the following questions; (30 Points) Activity # Description Original Crew Size Run Rate Duration (OD) (Equivalents) ($/day) Fixed Cost ($) Predecessors Successors 1100 Notice To Proceed (NTP) 0 0 $0 $0 - - 1200 1200 Mobilization & Site Work 10 50 $4.500 $10,000 1100 1300 1300 Foundations 14 80 $6,500 $45,000 1200 1500 1400 Rough-In MEP 30 45 $4,000 $65,000 1200 1700 1500 Structure 28 90 $7,500 $95,000 1300 1700 1600 Interior Work 35 30 $2,500 $75,000 1200 1700, 1800 1700 Finish Work 7 50 $6,000 $75,000 1400, 1500, 1600 1900 1800 Install Fixtures & Equipment 7 10 $1,500 $25,000 1600 1900 1900 Substantial Completion 0 0 $0 $0 1700, 1800 - - - a) Develop a network diagram using the above table. b) What is the total project duration? c) What are the activities on the project critical path? Which activities have positive total float (TF) and what are their values? Rubric: Detailed answers are required. Provide an explanation (through graphics and narrative) to answer sub-questions a through d