I'm guessing that the reason the percentage of CMU alums going to Google is high compared to say, MIT/Berkeley/Stanford is because CMU is predominantly a CS sch

I'm guessing that the reason the percentage of CMU alums going to Google is high compared to say, MIT/Berkeley/Stanford is because CMU is predominantly a CS school while the latter group is a bit more balanced towards other engineering disciplines such as EE/ME? edit: realized that this is because these firms don't hire nonengineers from CMU because the school is not local.