#h title x2 ss2 n2 x1 ss1 n1 diff diff_pct diff_conf_half diff_conf_low diff_conf_high diff_conf_pct_half diff_conf_pct_low diff_conf_pct_high t_test t_test_result t_test_break t_test_break_pct
example7.10	9	35.22	24.44	9	31.56	20.03	0	0	20.455	-20.455	20.455	227.27	-227.27	227.27	0	not-rejected	-20.454525503344	-227.27
#  | dbcoldiff -h <=0 x2 ss2 n2 x1 ss1 n1