One of the most difficult things to do is tell the numerically illiterate how your conclusions are useful. Many people have a huge distrust of math and believe intuition trumps all considerations. I think it's a cultural thing. Don't hire people that are afraid of quantification. They don't need to know the exact procedures, but they shouldn't be violently striking against quantification. Your sales team doesn't really need to understand statistics beyond that it serves a certain function, focusing on certain measurable targets.