<p>I made up a number than used the table.. and since the grader has to follow my logic, I probably only loss points on part b.</p>
<p>lol........</p>
<p>did anyone think number the one in the MC with the confidence interval and the teacher with women's heights and 100 samples was hard?</p>
<p>Do any of you guys know what the green insert packet was for?
Was it a scrapbook? It just had the same questions right?</p>
<p>MC - 6 unsure/1 blank - worst case is 33/40-.25*6 = 31.5/40, or 78%.
FR - worst case is 4, 4, 3, 2, 2, 2 - somewhere around 73%.</p>
<p>I think I got a 5. I'm so happy, I honestly felt like I was going to fail this morning. Then when I got to the testing center, turns out no one else knew squat. Woo... yay for crowds bringing down the curve..</p>
<p>Aren't the curves preset?</p>
<p>
No, that's the SAT.</p>
<p>No the test is set after all the tests are scored.</p>
<p>That's awesome. Thanks. I guess we all still have hope after all :).</p>
<p>You could be correct about a non-preset curve, because i would imagine that they like to meet thier typical distirbution of grades every year.</p>
<p>I thought i did pretty well on multiple choice..hopefully at 30 pts after the deductions, but I bombed free response. I bsed a lot..I just know I should've gotten a 4 on the first free response..it was easy cheesy. I'm thinking I can still get a 4 tho hopefully. 3 would be worst scenario.</p>
<p>Well, we just finished the test at 5:15 (1 hour ago, lol)
I thought MC was harder than 5 steps to a 5 (where our chapter tests came from) but the FR wasn't half as difficult as the MC.
This was my first time ever seeing an FR problem, and I didn't think it was too bad.
I doubt it's F tests, since #6 was asking about a chi-square distribution.
Prediction: 4, 2, 3, 3, 4, 3/4
Hoping for a 5, but probably will be a 4.</p>
<p>did neone get a lot of c's on the last part of the test</p>
<p>i got 4 a's 10 b's 10 c's 10 d's and 6 e's (i got bored and did a chi square regression. yes i am a nerd.)</p>
<p>I got 4 A's / 11 B's / 10 C's / 9 D's / 6 E's</p>
<p>I can't believe you people had so much difficulty. It wasn't bad at all. Moderately challenging at the most. And FRQ #6 wasn't hard at all! Only parts b & c were of any difficulty. D, E, and F are easily done with chi-square tables, and part A is common sense. I never saw the equation in B and C before, but it's just plugging in two variables! Not very difficult. The only problem is if S was to be calculated from putting the data into the calculator (then deciding if they want the standard error or deviation) or done by diving the previous standard deviation by the the square root of n. But since that only impacts B (C is the same result regardless of what value S can take from the possibilities), it won't hurt even if I'm wrong. Most of everything else is common sense.</p>
<p>How were we supposed to do chi square on #6 if there was only one row of data?</p>
<p>They never asked you to figure out the chi-square statistic. The only thing they asked you to was to plug in the equation and apply the result to the chi square table. And then see at which chi square statistic do you reject Ho. Not much to do with actually performing the test.</p>
<p>You could still do a chi squared test with only 1 set of data. After all, the formula for a any chi squared test is (observed-expected)squared/expected. Chi Square testing for homogenious data, or goodness fit, only needs one set of data.</p>
<p>Question 6 sure ruined many a person's day.</p>
<p>nah the 2 ap tests ruined my day. number 6 was just icing on the cake</p>