Mark Blumenthal and Natalie Jackson of Huffpost Pollster write: If you read polls in the news, you’re probably familiar with the term “margin of error.” What ...

This is a preview. Log in through your library . Abstract A comprehensive treatment of the theory of non-sampling errors is given in this paper by bringing together the work of a number of authors on ...

Testing the equality of two survival distributions can be difficult in a prevalent cohort study when non-random sampling of subjects is involved. Owing to the biased sampling scheme, the independent ...