Activity A B C D E F G H Optimistic Time (weeks) Most Likely Time (weeks) Pessimistic Time (weeks Precedent Relationship 8 10 1 2 4 . 6 8 12 B 2 4 6 B 1 2 4 D 4 5 8 B 2 4 8 F 1 2 4 G 1 2 4 H 2 4 8 EI 3 4 6 J 8 10 12 K 1 2 3 L 6 8 12 CM 1 2 3 N 6 12 16 6 12 14 12 18 24 J K L M N 0 P Q R Find the optimal earlier project completion time. Activity A . D E F G H 1 J K L M N O Q R Compression Time 6 2 7 3 2 4 4 2 2 3 4 10 1 7 1.5 10 10 18 Normal Cost ($) Compression Cost ($) 800 1,000 450 500 900 1,000 1,200 1,500 350 350 5,800 7,000 2,000 2,000 1,000 1,200 2,200 2,500 500 550 4,000 4,300 150 150 250 310 3,500 3,800 1,000 1,000 4,000 4,500 100 200 950 1,000