Baseball, Graphics Play Major Role in Newest Issue

摘要

The two themes of CHANCE 22(2) are baseball and graphics. Mark Glickman's Here's to Your Health column, Jonathan Berkowitz's Goodness of Wit Test puzzle column, and a couple of letters to the editor complete the issue.rnFor the baseball lover, there are three articles. For statisticians in general, issues of defining measures of performance, selecting a comparison group, adjusting for confounders, and modeling also appear in these articles. Jim Albert compares the career trajectories of pitchers. The rate at which pitchers allow hits and walks, adjusted for the pool of pitches and number of batters, is modeled using piecewise quadratic functions. Flexible, multilevel modeling is used to create individual trajectories that adjust for important factors and allow nuanced comparisons across pitchers.