Industrial Engineering and Production Management
Pessimistic time is

The maximum time which an activity might require
The most probable time considering all conditions
The minimum time in which an activity can possibly be accomplished
The average time required for a job

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Industrial Engineering and Production Management
Critical Path Net Work helps an engineer

To be cautious for avoiding any delay in the critical activities to avoid delay of the whole project
To concentrate his attention on critical activities
All of these
To divert the resources from noncritical advanced activities to critical activities

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