Goodness of Fit Test (Chi-Square Test) (TI-83 & TI-84)

Perform a Goodness-of-Fit Test (Chi-Square 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.

[@gharris713]

FINALLY! Life saver! I've been going around in circles with trying to do part of my tests by hand and part in the calculator and every time coming up with the wrong answer. Thank you so much!

[@phyrath5]

In case anyone just needs the TI-83 version: 5:45
The method is very good. Simple and memorable given familiarity with the 83.

[@valessiaharris8138]

thank you

[@rajselvaraj4173]

Thanks!

[@ryanwillis2513]

the TI-84, one of mans' finest creations

[@destinykymm]

I've been searching for 2 days on how to do goodness of fit with assistance from my TI 83. Finally I found this video and you do AMAZING and explaining this. You just saved me and will help me earn more points on my final! THANK YOU!

[@michaelbergeron5936]

Great video! I have a TI-83 and I am happy you used both. Otherwise I'd be lost.

[@markjamesmason]

You're a God send, thanks this is the type of test I was looking how to perform on this calculator!

[@steventorres4487]

I am very glad i came across these videos, had to take online ths semester and no professor that can help me right in the moment has been difficult to understand the material thoroughly, you're a life saver!!!!!

[@brandonmoreno4328]

Thank you so much for this. I need this for my exam, and I have the Ti-83 and was considering getting the TI-84 until I came across your video!

[@diegovalenzuela2679]

UUUUU, baby baby it's a wild world, and you saved my math life

[@CodexVR124]

Thank you so much for making this, for whatever reason my school seems to think it is illegal to show students how to actually use the technology that they are making mandatory for us to use.

[@salonichristian]

Why wasnt I here earlier? My exam's in 12 hours. THANK YOUUUU!!!

[@ericharwood1047]

thank you this was extremely helpful, taking statistics over the summer and basically teaching myself

[@qonthekeyz2041]

You saved my life today omg!!!! I have stats exam today

[@shelbyebanks6983]

Thank you so much. Love your videos, they are so helpful and to the key points.

[@se0271]

Saved me a ton of work. Thank you.

[@SadEyes1412]

There is no GOF option under the chi square one. I have a Ti-83

[@dadams7920]

very useful since the hawkes online program doesn't do demos but screenshots of how to do it

[@giannapessaro8284]

Thank you so much! I have a TI-83 and this was so helpful.

[@TALIS4ANGELS]

I can't say THANK YOU enough!! ♥

[@sethbishop2946]

I’ve got a test then a final coming up and this was very helpful😁

[@takemywordforit4128]

this was so neat and complete

[@huanluu1730]

Very useful. Thank you very much.

[@shelbyebanks6983]

Thank you, can you do a video with NOT uniform distribution?

[@eliodell]

Totally agree, that's what I need too

[@nooralmas9759]

thank you, you literally saved me

[@jasellia3291]

Thank you dude , I am lucky that I found u ...

[@laylaopenhym8560]

you are a god for this tutorial thank you

[@arkhammaster9120]

What about putting info into the calculator when there are no charts, but only n, sample standard deviation, and standard deviation are given?

[@austinmeyer8924]

THANK YOU SO MUCH

[@deondunn3074]

Thank you so much for this!!!

[@kennycherry7684]

thank you awesome video

[@goinpoo]

Good work

[@FancyTuna77]

exactly what i needed! thank you very much!

[@WOLFGANG634]

Im so defeated, it’s not working on my Ti-83 Plus. Im entering in my stuff correctly, but it told me the test statistic is different.

[@ammarajeel6838]

Great, Thank you very much

[@ChristianJDomingo]

THANK YOU SO MUCH!

[@vewinters1092]

you are amazing thank you x 10000000

[@manishasarin8213]

Best video

[@vincentandrews7265]

This doesn’t work. The x^2 calc value is way too big to be correct. I watched the video a few times and tried two different problems, still does not work.

[@OpenIntroOrg]

Hi Vincent, are you having problems reproducing the results on your calculator, or are you thinking there is something wrong with the video itself? In either case, can you provide more details of where you are encountering a problem?

[@JustinCupler]

THIS DOES NOT WORK!! I get an error every time on my TI-83 when entering the equation in L3

[@ldoraz1]

Hi, make sure to hit the up arrow, so that L3 is highlighted. Then enter the equation.

[@samuelposter31]

Your research (alt) and null hypothesis are switched....fyi

[@izzypinedaa]

no they’re not. your null hypothesis is your expected values

[@prayryan]

can i get a pdf for this worksheet?

[@OpenIntroStaff]

Hi there, sorry, we do not have a pdf to distribute for this video

[@arkhammaster9120]

How do you use percentages in expected? Please get back to me.

[@OpenIntroOrg]

Always convert to proportions instead of percentages (e.g. 23% --> 0.23) when doing expected value, variance, or standard deviation calculations.
(Does that answer your question?)