<p>u can do chi-square for one set of data. you just have to do it by hand (i dunno, thats how i do it) but luckily we didn't have to do it on the test.</p>
<p>To do it by hand put them into a list like L1 = expected and L2 = actual and go sum((L1-L2)^2 / L1) and that gets your chi square with df n-1. My teacher makes us program on the calculators a lot.</p>
<p>Stats was crazy. Expecting a 3 or a 4 (or maybe, if I win the lottery, 5).</p>
<p>Meh......:)</p>
<p>I am 95% confident that I will obtain a 4+/- 1 with a standard deviation of .68.</p>
<p>The fact that everyone got their asses handed to them on FR is a very good sign. I, for one, did not know what S was, messed up the SE of the slope, didnt have time to design the shrimp experiment and guessed on 6 although i feel like my guessing was somewhat successful. And I got the D=M+E one except c, probablity the mean was negative. ouch.</p>
<p>According to my Barrons book, a 5 is 68-100(points not %) and a 4 is 53-67. So hopefully, they'll curve this years a little more. I think I need a 4 to be 50+ to be safely at a 4 lol</p>
<p>omg that part ii was so much harder than i expected.
last q was difficult to say the least</p>
<p>As Ray says, I think all one had to do for #6 was plug in n=10, s=1.47 to get the statistic and look up the p-value and make your conclusion. Then you just had to shade in some areas. Haha im pretty psyched that everyone said they did horrible (although most will do better than they think) so hopefully this will bring up the curve and get me 5!</p>
<p>did anyone get a couple (two) of c's in a row around the last 5 of the multiple choice</p>
<p>say i got a 4,1,4,2,1, and a 4 on #6 </p>
<p>how many do i need on MC to get a 5? a 4? approx</p>
<p>i'm sure i got 5 wrong, unsure about 5 more</p>
<p>dunno man sorry</p>
<p>I took the international test and thought the MC was insanely easy, and the free response wasn't too bad except for that last one. Helloooo hatred for problem #6</p>