* do-file for exam 2008.2 (same analyses as in listing)
version 13
set more off
cd "h:\vhm\vhm802"

insheet using data_csv\ch06ex6.csv, clear
oneway ratio exp_cond, tab
xi: boxcox ratio i.exp_cond
gen tratio=ratio^(-1.5)
oneway tratio exp_cond, tab
xi: boxcox ratio i.exp_cond if ratio<3
oneway ratio exp_cond if ratio<3, tab