title: Which test do I need to find out if there is a significant difference between two lists of numbers and how can this be performed on R?
body: <p>I would like to find out whether there is a significant difference between two lists of numbers of differing lengths (one list has 25 values and the other has 104). Both lists are non normally distributed and they are independent of one another (as in not a before &amp; after measurements or something along those lines). Could someone help me on what test is needed and how to perform this test on R ?</p>
  <p>out of interest which test would be suitable for the same situation where the data is normally distributed (and how would this be done on R)?</p>