# Thread: p1=p2 test statistic question

1. ## p1=p2 test statistic question

Hi
I am now studying for my final which is tomorrow and i am doing some reviews

how do i do this problem

compute the test statistic used to test the null hypothesis that p1=p2
a report on the nightly news broadcast stated that 13 out of 111 households with pet dogs were burglarized and 23 out of 190 without pet dogs were burglarized.

this question i don't know where to begin, if anyone can help.

2. hint: Two sample proportion test

calculate p1^ and p2^

http://www.ams.sunysb.edu/~hahn/course/minitab/proportion/proportion.html

When Two-proportion z-test, equal variances
Test Statistic

When Two-proportion z-test, unequal variances
with

3. ## still a little lost

HI

I have the ti 84 calculator , i checked the website. but not sure what i put in for p1 or p2

is n1 111 and n2 190?

is p1 13 and the other p2 23?

with that i got 5.91516

i think i am doing it wrong

can you show me where i am doing wrong.

4. p is the proportion.

p1 =13/111 and p2 =23/190

You can easily calculate the test statistic manually.

http://cfcc.edu/faculty/cmoore/TI83ZTest.htm

5. ## thank you so much

HI

Thanks so much for all your help. I took finished my final. I hope I did ok but there were some questions I couldn't answer. I do appreciate all the website you posted and your help. You have been very helpful.

Thank you very much.

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