PLEASE EXPLAIN WITH DETAILS.

Question I (80 min, 15 points) Using the data of the project activities listed in the below table 1. Develop the network using the following project data 2. Determine the PERT "critical path(s)" 3. Calculate the mean and standard deviation for the project duration (TE). 4. Calculate the Z-factor and determine the probability to complete the project in each of the following durations: a. 37 days b. 40 days c. 56 days d. 65 days e. Between 65 and 56 days Activity O M P Predecessors 5.00 7.00 9.00 B 4.00 6.00 7.00 C 2.00 3.00 5.00 A D 4.00 6.00 8.00 A E 6.00 8.00 11.00 B F. 2.00 3.00 4.00 G 4.00 6.00 7.00 H 2.00 4.00 5.00 D I 1.00 2.00 3.00 E,D J 3.00 4.00 6.00 F G K 4.00 6.00 9.00 H, I, J