[Gretl-devel] statistics in gnumeric

During the last couple of days I have worked with gnumeric for the first time. I noticed that it has some statistical tests built in, like testing equality of means. Remembering our discussion about the appropriate formulae and handling of these (especially in small samples), what exactly do they do? And do gretl and gnumeric differ for the same data/setups? Would that be good or bad? cheers, sven