Suggested Citation: "5 Sampling and Estimation." National Academies of Sciences, Engineering, and Medicine. 2018. Reengineering the Census Bureau's Annual Economic Surveys. Washington, DC: The ...
Pew Research Center designed this study to assess the current state of online survey sampling methods – both probability-based and opt-in – and determine their accuracy on general population estimates ...
Mg isotope compositions of some typical geological standard samples measured by the DS method and the SSB method in different laboratories. The sample-standard-bracketing (SSB) method and double-spike ...
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