EG1001-Yes, the stats you'll find on SDN are definitely higher than average. It is my understanding that by definition the DAT is designed to have an average score of 17, and an AA of 19 is generally the average for accepted applicants nationwide. If you have an above average gpa (above 3.4/3.5) then an 18 or 19 will do just fine; if you have a below average gpa then I'd shoot for a 19/20. But at this point just build your confidence in what you know, tell yourself you're going to kickass, and go do it. If you've put the time in studying you'll do just fine. I was consistently getting 17 and 18 AA's on practice tests the week before my test date, and ended up with a 20AA because I stayed positive and refused to let myself get overwhelmed and freak out. Best of luck to you!
jmt-congrats on the ecu interview. I'm in the same boat as you, patiently (by patiently i mean sweating bullets) waiting to hear from UNC about an interview, while I already have one scheduled for nov 2nd at ECU as well. Congrats and I look forward to meeting you then!