2-Proportion Z-Test (Hypothesis Testing) (TI-83 & TI-84)

Perform a 2-Proportion Z-Test (hypothesis test) using a TI-83 or TI-84 graphing calculator.
TI-83 at amzn.to/1Qiwv3P (affiliate link)
TI-84 at amzn.to/1I0QO3P (affiliate link)
More free statistics resources, including our free intro statistics textbooks are at
www.openintro.o...
Video creator: Leah Dorazio ( / leahdorazio .
Closed captions: created by Frank Marfai at Phoenix College.

[@oscaryterry1500]

fucking hardest math ive ever learned.

[@samirakhan6957]

Really helpful. Before watching these videos, I was completely oblivious. Keep making these informative videos.

[@chrisclements3862]

most problems ask for critical value as well. why do most videos not include that function? is there a way to find it with technology and not the chart? thanks so much.

[@DhariniTrivedi]

bless this lady

[@SnapcrackerzTeam]

Proudly proud of you young lady's may God bless you

[@maxpercer7119]

The TI 84 by default uses the pooled proportion?

[@sasan68irani]

Thanks for the video. Really helpful.

[@Finalaproach]

Really good video and excellent instruction skills. For someone taking online classes, this serves miracle. Ill be sure to check your other videos. Please keep them coming.

[@Duttywhinequeen]

I might be buggin but isn’t the p value more than alpha?

[@OpenIntroOrg]

@ 3:48 in the video, notice the "E-7" on the end of the p-value number. This means the p-value is 1.5281815 * 10^(-7) ≈ 0.000000153.

[@ericadesiree8700]

OpenIntroOrg giiirrrlll your reply saved me from getting a answer wrong on my final! Thank you!

[@fermitthekrog6318]

Thanks

[@namondaT1]

Error of margin ?

[@IceQeen1011]

I'm so confused how you rejected alpha when alpha was 0.05 and the proportion (pooled proportion) was 0.928 which is way larger than alpha.

[@OpenIntroOrg]

Alpha is compared to the p-value, which is *not* the same as the proportions or pooled proportion. You can explore the p-value concepts in any of our books (free PDFs on openintro.org/books), or you can check out the following set of videos that gives an overview of the relevant chapter: kzbin.info/aero/PLkIselvEzpM7Pjo94m1e7J5jkIZkbQAl4