A project consists of 10 work packages (activities A J). Your instructor has developed a network diagram and used CPM to find the critical path. The activities along the critical path are A-C-DG-I-J . Time Estimates (Duration) Activity in days Low Mode High A 9 16 22 B 8 14 20 C 5 6 8 D 16 1 8 23 E 22 30 33 F 7 10 12 G 21 24 27 H 5 8 10 I 12 18 21 J 2 4 6 a) Find the expected duration of the project and its standard deviation b) What's the probability of completing the project in more than 13 weeks