Hello all. I have a question about statistics. I have two sets of data. each set of data has an x and a y value (in more details, for each concentration "x" a surface charge "y" is measured experimentally. and this was done for two different membranes in the experiment). SO: I have a set of x and y for system 1 and a set of x and y for system 2.
My question is: how can make sure that these two sets are significantly different?
I am familiar with the t-test and getting the value of p. how does that work when "x" is not the same for the two sets of data??
Happy to elaborate further if this is not clear and thank you in advance.