(3) ABC Tech has been contracted to install a software system for a client company. Relevant data for the project which consists of activities A, B, ..., H are given in the table below. The project network which includes calculations of earliest start, latest start, earliest finish, and latest finish follows the table. 5 Immediate Normal Time Crash Time Normal Crash Activity Predecessors (days) (days) Cost Cost A None 3 1 $1,000 $8,000 B A 5 5 $4,000 $4,000 A 2 2 $2,000 $2,000 D B, C 7 5 $3,000 $4,000 E 5 4 $2,500 $3,800 F E 3 1 $3,000 $3,600 G E 6 4 $4,500 $8,100 H D, F, G 8 5 $8,000 $17,000 The figure below displays the network representation of the project. 318 815 B: 5 D:7 419 9 16 013 A3 013 315 510 1013 1624 C:2 E: 5 F: 3 H: 8 315 510 13 16 1624 1016 G: 6 1016 a) [2 points] What is the critical path? ACEGH ACEFH ACDH ABDH The correct answer is: ACEGH b) [1 points] What is the project completion time(duration of the critical path)? x c) (2 points] What is the total cost of the project with normal costs? $ X d) [3 points] Which activity should be crashed to reduce project completion time by 1 day at minimum cost? OF B The correct answer is: E e) (3 points] What is the incremental cost in part d)? X