<p>Even if your SAT and GPA were in the 75% plus percentile an essay like this will most certainly hurt your chances of getting in. As the other members have pointed out the University of Chicago doesn’t offer an undergraduate business school, which shows the University of Chicago admissions officers that you did not do your homework when you looked at the University of Chicago.</p>
<p>Since it is still before the deadline I would suggest correcting your mistake(s) and see if you can resend it. If not I would send an email to their admissions office to see if they will allow you to submit a new supplemental application after the deadline.</p>