I called up Dante and they said that it doesn't say on the exam that you can use a calculator... is it poss that you can't use one... I'm studying for the exam and it's hard to think of how I would do everything without a calculator.
I recall reading somewhere that the test site provides a calculator - call the test center. You can use a calculator per this: http://www.getcollegecredit.com/downloads/factsheets/Statistics_20080509.pdf (DANTES seems to have changes its name to DSST)
I was allowed use of a calendar when I took this exam in mid-2004. I can't remember if I brought my own or if the testing center provided it, though. I know programmable calculators were verboten, though.