A Local Project Being Analyzed by PERT Has 42 Activities

Multiple Choice

A local project being analyzed by PERT has 42 activities, 13 of which are on the critical path. If the estimated time along the critical path is 105 days with a project variance of 25, the probability that the project will be completed in 95 days or less is

A) -0.4
B) 0.0228
C) 0.3444
D) 0.9772
E) 4.2