Romansh: Either no one wanted to admit not knowing or they knew. Perhaps they did not care enough to reply. Fair enough. > > Well the doctor's reply should be along the lines ... > > [i]Well Mr rom you can't come to that conclusion as I have not given you enough information.[/i] > > So what is the piece of missing information that we need?-I admit to knowing litle about statistics, even though I cooked-booked some results for papers that were published, simple T and P values, occasional chi- square..