Question $18.$

Program Evaluation Review Technique $($PERT$)$

a$)$ Based on the given information, complete the table below to solve for the expected

$($mean$)$ duration, standard deviation, and variance for each activity. $(19$ points$)$

b$)$ Identify the critical path of activities: $(2$ points$)$

c$)$ The expected $($mean$)$ duration of the critical path is:$(2$ points$)$

d$)$ Find the probability of completing the critical path in $39$ days or less: $(2$ points$)$