Just a quick question about AP Stats

<p>Hey guys, I'm currently taking AP Statistics and I plan to take the AP test for it in may. In my stats class, we use the assumed alternative against the null to be .1 , but in my stats book, they use .05. I know the test will probably give me the alternative to go against but if they don't mention anything about it, do I assume it to be against .1 or .05?</p>