Optimistic and pessimistic times

project network analysis

In a project network the critical path is the sequence of activities which has the:

most nodes

greatest variance

longest time

most events

most activities
2.
In project network analysis, “slack” refers to the difference between:

latest and earliest times

optimistic and pessimistic times

mean and modal times

finish and start times

observed and predicted times
3.
Activity C has an early start time of 8, an early finish time of 12, a latest start time of 13, and a latest finish time of 17. Its slack is:

1

0

4

5

9
4.
Activity J has a duration of 7 and an earliest finish time of 21. If J’s latest start time is 16, this must mean that J’s slack is ________.

1

3

7

2

4

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