2014 AP Statistics Thread

<p>@cindycray‌ that’s the interpretation for coefficient of determination (r sq)… and not residual </p>

<p>@sahil9797 were you like ‘’ because theoretically it’s possible?’’ also, can you answer my question about number 5</p>

<p>@mzr1998 yea dude, It was supposed to be that. im so mad I made that dumb mistake</p>

<p>@mzr1998 could I still get points for just having 4.294?</p>

<p>@XCBro4Life‌ yes, u get points for all the work u show!
also for the doubt question, I said the population size n = 9 is very low, and it can hence be theoretically possible. </p>

<p>what’s ur question on #5? </p>

<p>@XCBro4Life‌ readers expect “Statistical justification” so unfortunately you would probably get a 2 at best. (For your question on #5)</p>

<p>@sahil9797 for number 5, I didn’t mention any sort of tests or hypothesis. I said that women do pay more money per car in a particular county because of the evidence. could I still get 1 point? </p>

<p>Also, @sahil9797‌, would I get partial credit if I did #2 with replacement?</p>

<p>@mzr1998 a 2/4? for that question? also, did women pay more?</p>

<p>I believe College Board states that even if u do it the wrong way, but u show all the calculations correctly (for the wrong method) … u get Partial/Full Credit for that work … </p>

<h1>5 … I did it as a matched pairs t-test for means</h1>

<p>and yes, women did indeed pay more </p>

<p>@XCBro4Life‌ yes they did. The p value was low so I rejected the ho, and the ho was that men and women paid the same.</p>

<p>@mzr1998 start tagging @hawkace with questions. he’s a genious.</p>

<p>wait. so the best I would get is a 1 then? I did not include those hypothesis. I just used evidence</p>

<p>Can someone explain how the curve will change?? According to AP pass I’m getting a 5 but it’s kinda close to theboderline. Based off of how easy this exam was, what shud I expect?</p>

<p>@XCBro4Life‌ how did u get to that evidence? did u show some work?</p>

<p>I did 2 samples test an got a really high p value.
also, I put there was only a 1.8 percent chance that all three women were picked and that was a really small amount so I said the managers selection was rigged</p>

<p>@XCBro4Life‌ Did you state the conditions, calculate a p value and the test statistic and make a conclusion? If you did that but did not state a set of hypotheses, you could get a 3 I think.</p>

<p>@XCBro4Life‌ but if you only referenced the table of differences between men and women and said “since women paid $585 more, it is appropriate to conclude that women tend to pay more for cars than men” you would probably get a 1 or 2 cuz your evidence is not ‘statistical’ (i.e. you did not use the t distribution).</p>

<p>@mzr1998 @sahil97 all I literary said was. because 6 out of 8 car models show that women paid more it is evident hat women paid more. also, the mean for wmen is higher. Although it was much more lengthy.</p>