Occupational Employment Statistics (OES)
A probability sample is used to create the estimates. BLS selects the sample and sends it to the relevant area for data collection. The sample is selected from each state's or territory's Unemployment Insurance (UI) file. Prior to selecting a randomized sample, BLS stratifies the firms in these files by geography, employment size, and industry. In Wisconsin, establishments are stratified into eleven Workforce Development Areas (WDA), fifteen Metropolitan Statistical Areas (MSA) and four Balance of State (BOS) areas.
More detailed information on the complete stratification process can be found on the Bureau of Labor Statistics (BLS) website.Learn More | Subscribe to Email | Data Access
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