Review notes to remember chap9

So I didn't study nearly hard enough for my exam. All these things in my head keep me from concentrating. I am worried because I can't find my checkbooks (hold lots of important identity info). My house is still in the moving process with boxes and furniture not set up.
My jaw has been giving me hell and because of that I have this massive headache and jaw ache that consumes me.

Then I also have this test worry.

So here are a few pointers to help me for my exam tomorrow.

9.2
Inferences about 2 proportions
both are independaent and greater than or equal to 5
use calc except for E.
E= square root of p1p2/n1 +p1p2/n2
calc
stat tests 2 propztest
look for ts z= and p value if the pval is negative than it is less than. if it is greater than significance than we do not reject the null hypothesis. We say there is not sufficient evidence to support the claim of H1 and then say it appears ...
Confidence Intervals
If it contains zero there is not significant diference between teh proportions which suggest they are not different. If it does not contain zero, then it appears the proportions are different.
9.3 Inferences about two Means:Independent samples(unrelated)
not pooled
State test 2sampttest
stat test 2samptint
9.4 Inferences from matched pairs
use formulas
ts t=difference of paired data-0/ sd/square root of n
df=n-1
Confidence Interval: Difference of paired data minus E< udE= ta/2 Sd/square root n
Enter info into L1 and L2. take the diff in L3
stat cal enter 2nd L3 Enter
Difference of paired data= mean
Sd=sx
no pvalue calculations
9.5 Comparing variation in two samples
pop independent and normally distributed./ use table a5
df=n1-1
denom df=n2-1
use the closest or half way use smaller df

Always right taield or two taile
two tables
not symmetric curve
non negative
use pop sd
use formula for ts
no p value
no CI
ts:F=s12/s22, s1>s2