Problem 3 Chapter 7: Your hospital has applied for certification as a level 1 stroke center. It is critical that! the following project is completed before the next Joint Commission survey in 18 weeks. Project activity times are listed in the table below. a) Draw the network diagram and identify the project paths. b) What is the project completion time and total project costs if only normal times are used? c) Determine the minimum cost-schedule for this project. d) What is the difference in total project costs between the earliest completion time of the project using normal times and the minimum cost-schedule you derived in part a? Activity Immediate Predecessors Normal Time (NT) (weeks) Normal Cost (NC) B A C D Crash Time Crash Cost (CT) (CC) (weeks) (S) 2 $1,400 3 $600 6 $950 $1,200 $2,800 $400 $750 7 9 2 8 5 C $600 $200 $500 $800 $1,600 $200 $400 D B, D F