Answers for each given letters, please

to 2. Construct both AOA diagram for the data. a) Using the same data in No. 1, compute for expected time for each activity and the expected path duration b) Identify the variance for each activity and of each path c) Identify the critical path d) Compute for z value, the Pz (Normal standard distribution) and plot in a graph ACTIVITY IMMEDIATE TIME PREDECESSORS ESTIMATES tm tp (days) 2 1 4 B 3 2 4 A,B 6 1 3 8 D AC 12 3 8 10 E B,C 15 2 4 F D.E 6 5 7 G DF 7 3 6 8 H EF 9 1 3 GH 4 1 5 J GI 12 4 6 10 K HI 5 2 6 7 L JK 4 1 4 M KL 3 2 4 CNN 60|0|0|0|0|0ONON