Task time estimates for the modification of an assembly line at Jim Goodale's Carbondale, Illinois, factory are as follows:
a 6.0 -
b 7.2 -
c 5.0 a
d 6.0 b,c
e 4.5 b,c
f 7.7 d
g 4.0 e,f
a) Draw the project network using AON.
b) Identify the critical path.
c) What is the expected project length?