<p>Should I work on the last BIG question first, or should I work on easy FR questions first?</p>
<p>Start the last big one, so you can have as much time as you need.
The others don't take as long and can be done in the end.
The last one counts the most so why not get it out of the way first?</p>
<p>When it asks you to find the confidence interval or other things like the margin of error, do I need to show the formulas ?</p>
<p>I don't know if I can still remember the formulas for them.........</p>
<p>Formulas are always given right?</p>
<p>And, there's 6 FRs right, with 1 independent task? I'm assuming this one will take the most time, since you have to explain everything in writing</p>
<p>Are the FRs always the same topic from year to year?</p>
<p>Should I use a pen or a pencil when answering the FR questions?</p>
<p>In Barron's, it seems as if the FR is the same (CI)...is this reflected on the real test? What should I DEFINITELY know for the FR (we haven't done any).</p>
<p>ALWAYS show the formula you use, even if you use your calculator.
NEVER write "calculator talk"
Formulas given are quite minimal, so I suggest you try to memorize some of them.</p>
<p>are they really minimal though? they seem like ALL the equations one would have to know</p>
<p>Yeah thats what I thought too =</p>
<p>Hmm, well does anyone know which formulas aren't on the formula sheet? So I can put them on my calculator now</p>
<p>Use pen, unless you know you'll make a lot of mistakes</p>
<p>yeay! sarorah quoted mee =]</p>
<p>They're pretty generic formulas.
Not everything is there either, like probabilities of Type II errors.</p>
<p>what are the chances of getting one though? is it worth it to memorize for just one question? maybe, maybe not</p>
<p>I don't think calculation of Type II errors is even on the test.</p>
<p>
Hahah, pleasure's mine :)</p>
<p>teach me P(A) P(B) U thingys and conditions/assumptions for the prob tests they will ask</p>
<p>I'll give a shot at probability:</p>
<p>P(A U B) = P (A or B) = P(A) + P(B) - P(A and B), if disjoint: P(A and B) = 0</p>
<p>P(A and B) = P(A|B)P(B) ; if A and B are indepedent ... P(A and B) = P(A)P(B)</p>
<p>someone confirm?</p>
<p>Binomial -
1) Two outcomes - "success" and "failure"</p>
<p>2) fixed # of trials</p>
<p>3) trials are independent</p>
<p>4) P(sucess) is the same for each trial.</p>
<p>Sampling Distribution of Sample Proportion - </p>
<p>Rule of Thumb 1: Use recipe for standard deviation of p-hat only when pop is at least 10 times as large as sample.
Rule of Thumb 2: np >=10 and n(1-p) >=10
Rule of Thumb 3: assumption that sample is less than 10% of population</p>
<p>Chi -</p>
<p>1) data provided are frequencies (counts)
2) expected counts are greater than 5
3) random sample selected</p>
<p>thank yoU!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! :) <em>smile to my face</em></p>