Making a predictive statement like that is probably a bit premature. All I'm saying here is that the group of people who got offers differed significantly from the group that didn't get offers when it came to how many typos and other errors they had.

Moreover, whether an offer is a good proxy for whether someone is a great engineer is unknown. As I mentioned in another comment, it would be awesome to track on-the-job performance and use that as the dependent variable.