November TAS Spans Range of Topics

摘要

The November 2019 issue of The American Statistician features 11 articles and two letters to the editor. The General section has three articles. The first looks into tests for trends over time in multinomial probabilities. A test of no trend versus the alternative of a trend for at least one of the categories is discussed. The second article formulates a two-sided test by decomposing the alternative into multiple directional alternatives. The test procedure is a set of rules that maps the rejection decision to a specific alternative. The third article addresses the replication crisis through a Bayesian lens. A Bayesian replication factor developed for a two-group setting is extended to a more general multi-group setting.