Time Estimates (weeks) a a b . 5 17 8 12 15 3 4 A 4 7 10 5 8 23 Activity Activity Activity Description Predecessor Position recruiting B System development System training D Equipment training E Manual system test B, C F Preliminary system changeover B, C G Computer-personnel interface D, E H Equipment modification D, E 1 Equipment testing H J System debugging and installation F G K Equipment changeover G1 1 1 1 13 1 4 3 9 6 2.5 1 7 1 1 1 N N 2 5 8 11 Activity Time (in Weeks) Activity Normal time Crash time a 9 7 b 11 9 7 5 d 10 8 e 1 1 5 3 g 6 5 h 3 3 i 1 1 j 2. 2 k 8 6 - D Activity Cost ($) Normal cost Crash cost 4,800 6,300 9,100 15,500 3,000 4,000 3,600 5,000 0 0 1,500 2,000 1,800 2,000 0 0 0 0 0 0 5,000 7,000 Crash the network to 26 weeks. Indicate how much it would cost the bank and then indicate the critical path