But you are also making assumptions,  and you are "betting" that the 20 women are as qualified as the 40 men.  Hunches are not a sound basis for public  policy decisions that are key to quality on our campuses and continued competitiveness in international business and technology.  Again, as I said in a comment to CP3, if  there is a problem with access owing to attitudes, you deal with the root cause - not the symptom and especially not when treating the symptom is unfair on an individual basis.