Consider the network described in the table below. Summarize your answers in the table below. Show all

your work otherwise no credit given. Ten points $($network $2$ points, part a $+b-6$ points, part c$-2$ points$).$ If

using software as evidence of your work please provide relevant software output data.

a$.$ Calculate the expected duration of each activity.

b$.$ Calculate the expected duration and variance of the critical path.

c$.$ Calculate the probability that the project will be completed in fewer than $30$ time units.

ANSWERS:

Part a and b$.$

Network $($show your work on the network$).$