Industrial Engineering and Production Management
Work sampling is applied for

All of these
Finding out time standards, specially where the job is not repetitive and where time study by stop watch method is not possible
Estimation of the percentage utilization of machine tools
Estimating the percentage of the time consumed by various job activities

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Industrial Engineering and Production Management
In order that linear programming techniques provide valid results

Relations between factors must be linear (negative)
Relations between factors must be linear (positive)
Either (A) or (B)
Only one factor should change at a time, others remaining constant

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