state gov TSPSC Polytechnic Lecturer Mock Test 2022 Industrial Engineering Operations Research PERT and CPM
A PERT network has three activities on the critical path with mean time 3, 8 and 6 and staandard deviations 1, 2 and 2 respectively. The probability that the project will be completed in 20 days is:
Use: Z (1) = 0.841, Z (0.33) = 0.629, Z (0.6) = 0.7251
0.50
2
0.66
3
0.84
4
0.72