Industrial Engineering and Production Management
Slack represents the difference between the

Latest allowable time and the normal expected time
Normal allowable time and the latest expected time
Latest allowable time and the earliest expected time
Proposed allowable time and the earliest expected time

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Industrial Engineering and Production Management
Which of the following are the guidelines for the construction of a network diagram?

All of the these
Dummy activity consumes no time or resource
Dangling must be avoided in a network diagram
Each activity is represented by one and only one arrow in the network

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