Statistics is a branch of math that involves the collection, description, analysis, and inference of conclusions from ...

Historically, public opinion surveys have relied on the ability to adjust their datasets using a core set of demographics – sex, age, race and ethnicity, educational attainment, and geographic region ...

Four statistics which may be used to test the equality of population means are compared with respect to their robustness under heteroscedasticity, their power, and the overlap of their critical ...