Pick up the incorrect statement about advantages of work sampling

A. Permits a fine breakdown of activities and delays

B. Simultaneous study of many operators may be made by a single observer

C. Calculations are easier, method is economical and less time consuming

D. No time measuring devices are generally needed

Answer: Option A

Solution(By Examveda Team)

Advantages of work sampling method are as follows:
Work sampling gives an unbiased result since workmen are not under close observation.
Team work can be studied by work sampling and not by the time study.
Work sampling is economical and less time-consuming than time study.