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Random sampling, (also referred to as work sampling or activity sampling) is a work measurement technique where observations about work are collected at discrete random time intervals. Random sampling is a particularly useful technique whenever time study data collection is not possible, or is cost prohibitive. Statistically, when a sufficient number of discrete samples are observed, the overall percentage occurrence of the samples begins to approach actual percentage of time that each activity takes.
Random sampling projects were traditionally carried out manually using a paper and random number tables. Today, Quetech's WorkStudy+ random sampling solution provides an electronic way of scheduling observation time intrevals and collecting sampling data. |
