======= Date Modified 04 05 2009 15:05:23 =======
Hi everyone,
I'm stuck in statistics hell and am hoping one of you clever people can help me get out of it (and yes that was shameless flattery ;-) )
basically, i am attempting to compare two groups of data that look a bit like this:
drug observed value predicted value
drugA 3 3.2
drugB 6 7.8
drugC 25 20 etc etc
basically, my sup has suggested i use a t test, but being a complete stats numpty, i have no idea which one to use! am i right in thinking that because the data is related in some way (i.e. there are observed and predicted values for each drug individually) that i need a paired t test? i am confused, because although the data is related in this way, it is also unrelated, e. the observed value has no influence on the predicted one, if that makes sense! (not like say taking someone's blood pressure before and after an event, where the two measurements are taken from the same person)
hope someone can clear this up for me....
thanks! :-)