<p>would it kill my score if i used a critical value of 2.326 for the 99% interval…</p>
<p>ok i think i got #6 right, was k = .04? Then were we supposed to use that to create a 99% confidence interval?</p>
<p>you weren’t supposed to get a numeric value for k???</p>
<p>I’d be really surprised if I got anything less than a 5, despite not completing D on the last free response. My proctor >.></p>
<p>CPU, for part (d) you were.</p>
<p>oh yeah that’s what i meant 
(part c))</p>
<p>I had so much time to kill during the FRQs that I read the lead-in to #6, answered the multiple-choice question, wrote the graders a note about how I knew the answer to the question, and then solved the entire FRQ.</p>
<p>I’m really surprised that only whatever percent (48 hour rule kekeke) of U.S. seniors were able to get that question right without guessing. Although I think that’s a really conservative estimate since the problem didn’t consider people who were able to eliminate answer choices…</p>
<p>i think it said part d was in terms of k, not find an answer for it</p>
<p>or i did it wrong. oh well. i thought it was really easy overall, with the MC being medium and the FRQ’s being easy.</p>
<p>i thought it was pretty challenging. I completely messed up the number 2 probability lol. i forget how to do probability when given something. And I messed up the random sampling for number 3…oh well</p>
<p>did any get any statistically significant answers on free response? cholesterol or wind questions?</p>
<p>the wind one was statistically significant</p>
<p>I got wind, yes; cholesterol, not at that alpha.</p>
<p>yes, a p-value of .06</p>
<p>and how’d you find the one for the wind? i thought it was just correlated since they ask about association or something like that</p>
<p>I completely forgot how to do the test for regression lines, but otherwise I thought the test wasn’t too bad.</p>
<p>I thought the multiple choice was generally easy, and the short answers were so easy I thought they were gifts. Took a bit of time and algebra to solve for ‘k’ on question 6 part d though.</p>
<p>Thought MC was insanely easy…like no math involved for a lot, you could use a lot of process of elimination. The FRQ were easy, just had to think about it for some</p>
<p>My teacher forgot to order enough AP exams, so one of the kids in my class didn’t get to take it…</p>
<p>^ wow, who lucked out? like how did they choose?</p>
<p>One of the girls had an internship like 2 hours away, so she didn’t take it.</p>