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Pick up the incorrect statement about advantages of work sampling | |
A. | permits a fine breakdown of activities and delays [Correct Answer] |
B. | simultaneous study of many operators may be made by a single observer [Wrong Answer] |
C. | calculations are easier, method is economical and less time consuming [Wrong Answer] |
D. | no time measuring devices are generally needed [Wrong Answer] |
E. | as operators are not watched for long periods, chances of obtaining misleading results are less. [Wrong Answer] |