Key points are not available for this paper at this time.
Stem-and-Leaf Displays (J. Emerson & D. Hoaglin). Letter Values: A Set of Selected Order Statistics (D. Hoaglin). Boxplots and Batch Comparison (J. Emerson & J. Strenio). Transforming Data (J. Emerson & M. Stoto). Resistant Lines for y Versus x (J. Emerson & D. Hoaglin). Analysis of Two-Way Tables by Medians (J. Emerson & D. Hoaglin). Examining Residuals (C. Goodall). Mathematical Aspects of Transformation (J. Emerson). Introduction to More Refined Estimators (D. Hoaglin, et al.). Comparing Location Estimators: Trimmed Means, Medians, and Trimean (J. Rosenberger & M. Gasko). M-Estimators of Location: An Outline of the Theory (C. Goodall). Robust Scale Estimators and Confidence Intervals for Location (B. Iglewicz). Index.
Collett et al. (Sun,) studied this question.