Thanks to Roy St Laurent & Rich Ulrich for their advice. In follow-up: a reference for the Bradley-Blackwood procedure:
Bradley, E & Blackwood, L (1989). Comparing paired data: a simultaneous test of means and variances. Am Stat, 43, 234-235. SR Millis . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
