Exercise $10$:

A project activity has been determined to have the following potential durations:

An optimistic completion time of $12$ days, a pessimistic completion time of $25$ days, and a most likely completion time of $15$ days. What is the estimated activity duration using the weighted average technique?

Exercise $11$: Network Diagram

Construct a network diagram using the following information:

$\backslash$table$[[$Task name,Predecessor,Duration$],[$A$,$None,$5],[$B$,$None,$6],[$C$,$A$,2],[$D$,$A$,$ B$,5],[$E$,$B$,4],[$F$,$C$,$ D$,$ E$,4]]$

a$)$ What is the critical path?

b$)$ What is the project duration?

c$)$ What is the float at task C$?$

d$)$ What is the early start of task E$?$

e$)$ What is the late finish of task A$?$