What is the critical path?

Using the information provided in the table, the network diagram and the project completion time = 23 weeks, calculate the minimum time for completing the project possible. Normal Time (weeks) Normal Cost ($) Crash Time (weeks) Crash Cost ($) Maximum weeks Reduced Crash Cost per Week ($) Activity A 3 500 2 900 1 400 B 4 600 3 700 1 100 C 6 800 3 1,300 3 167 D 6 1,500 4 2,150 N 325 2 2. E 6 1,750 4 2,250 250 F 5 1,200 5 1,200 0 0 G 6 6 1,500 4 1,800 2. 150 H H 2. 500 2 500 O o AON network diagram: B B E A G H D F Minimum project completion time = weeks