Late response, but am current Duke student who got a merit scholarship - will confirm that it is not just stats that matter for these scholarships, that's not how it works these days. Each school probably gives differing weight to different factors but stats are just one part of the whole picture. Duke's admissions committee meets to discuss and they give out decisions starting in mid-April. At least via my anecdotal experience last year, of the people I knew of who discussed their merit offer with me, there were def a range of stats.