Question

How do you conduct a t- test for a set of matching pairs to find the t statistic, p value, and significance level? The matching pairs part is what's throwing me off.

Answer 1

oy this sounds familiar ....

Answer 2

a set of matching pairs, what is that?

Answer 3

For this example they're comparing two different drugs and the results.

Answer 4

http://stattrek.com/statistics/dictionary.aspx?definition=matched-pairs_t-test

im reading this to refresh anyting i might have lost thru the years

Answer 5

whats our x1 and x2 ?

Answer 6

this might be easier.

Answer 7

you lied!! that is definantly NOT easier :)

Answer 8

haha, I meant easier to see it for me to describe...lol I have the values i L1 and L2 in the calculator, but not sure where to go from there.

Answer 9

what are the numbers in the reference and generic columns relate to?

Answer 10

Those are the results from the different drugs. So I'm guessing those would be the x1 and x2?

Answer 11

so each group received the generic and the reference drugs; but at different times and such that yada yada ....

Answer 12

exactly

Answer 13

but what do the numbers themselves mean?

Answer 14

The absorption of the drug in the blood

Answer 15

absoprtion extent = 4567 ....

Answer 16

so they are differing absorption thingys

Answer 17

right.

Answer 18

and youve created 2 separate lists on your ti83 or similar contraption so far

Answer 19

so far yes. I feel like I need to subtract one from the other though. I'm just not sure on that.

Answer 20

yes, L1-L2 will give us the required x1-x2 parts to distribute into a curve

Answer 21

L1-L2 = d

then the mean of d and its associated sds and variances and curvilinear contraptions can be assessed

Answer 22

alright. do I need to subtract them separately? or could I do the total of L1-total of L2?

Answer 23

you want to so:

sub1 : L1 - L2 = d1
sub2 : L1 - L2 = d2
etc .....

this way you have a running tabulation of effects for each random variable presented

Answer 24

so separatley is what ive got in mind

Answer 25

okay. Let me do that real quick.

Answer 26

whew. okay, got that done.

Answer 27

now with the new stuff in "d" as im calling it; we can construct a distribution and ints graph to perform calculations on

Answer 28

ok, so put the new list in the calc. then go from there?

Answer 29

yes, then we can test hypothesises and the normal day to day unpaired situations

Answer 30

Okay, I have it in. So I guess I need to find the μ ?

Answer 31

yes

Answer 32

http://stattrek.com/hypothesis-test/paired-means.aspx

this page actually has a good working example that you can follow that parallels yours i believe

Answer 33

Great. Thank you!

Answer 34

yw, and good luck with it :)

Answer 35

Lol I think I got this one. We'll see about the rest of the course. :p