Statistics-Help

[john_galt]

I've been studying with the Idiot's Guide, and going through IC. I understand the concepts being asked on IC...

I still need to cover the "Regressions" section, but I don't think that'll be a problem.

I'm taking the CBT version of the exam through a local college. I used up all two hours the last Dantes exam I did on CBT... I'm hoping that IC doesn't steer me wrong. I just need a 48 to get credit... As long as I hit that, I don't care about much else! I'll post my comments afterwards.

Okay... I took this and finished with 15 minutes to spare. When I got to the end, I figured - it was either pass/fail. Fixing questions wouldn't do me any good. As I was going through the exam, I felt I forgot a lot of formulas I knew pretty well the night before...

I scored a 67.

There were several questions about chi-squared.
There were a BOATLOAD of null hypothesis questions.. and comparing two distributions and formulating a hypothesis.
There were a handful of probability questions

As stated before... the test is less about calculations and mostly on concepts. I had about 5-10 questions that would setup a problem... and you had to identify the formula to solve it. It sucked the first time, when I solved the question... and saw the answers they gave were formulas!

I took in a TI-36X and a TI-30X-A calculator. Either calculator would do fine on this exam. If you already have a TI-30X-A, just keep it. If you're buying a new calculator, go with the TI-36X. But for the 2 questions I got on correlations and y-intercepts, I didn't need the functions the TI-36X offered.

All in all, this is not a tough exam. If you study the Complete Idiot's Guide, know chapters 9+, and understand the concepts of probability. Use IC, because the style of the questions are very similar.