since your reply died - your absolutely wrong about massive oversampling, you can get 95% with basic assumptions about 60% white, 40% minority (matching actual

since your reply died - your absolutely wrong about massive oversampling, you can get 95% with basic assumptions about 60% white, 40% minority (matching actual proportions in the population - and actually an underestimate when you consider that new hires are young) and the retiring fortune 500 population (70-90% white). as i said, just basic innumeracy on your part