How to do the Hypothesis t-test using the TI-84

[@oliviaknibbs8216]

you use z test if you're given the population standard deviation. she probably just calculated her sample standard deviation

[@angellopez9127]

Thank you. You are the greatest in the whole wide world.🙏🏼

[@chevydude658]

This was so much help to me! Gracias por todo!!!!!

[@catherinehill5123]

This explanation is outstanding.

[@noemygraciano1581]

This was so helpful. BTW I love the accent

[@carolinesspeaks]

Hey can someone help me understand why she used t-test when standard deviation was given? this is really confusing me. thanks.

[@MerkBonez]

Why are you using T test if the standard deviation is given? You use t test when it’s not given.

[@TheNikki318]

standard deviation given is from the sample, not the population, thus a T test

[@Amber-tk8hd]

thank you for showing this! my prof didn't know how to show me on my ti83 since he owns a ti84

[@thebigboss972]

Hey Vanessa. It's Aaron, Anna's sister. Thanks for the help again :) !

[@theblueyedcreature]

A t test is for a unknown standard deviation?

[@xtremesqueesie]

How do you plug in alpha (level of significants) in to the TI that you are using?

[@kisashouta4243]

omg you saved meeee thank youuu!

[@VanessaGraulich]

happy it helped you :) . VG

[@arevyah9517]

you're a lifesaver!

[@ruozhenyang3142]

Why the t value given as this process is not equal to the t value by using inverseT distribution???

[@MA-ek1xl]

Hi what if I have a list, what if I have two lists and want to find the t test?

[@alyssa447]

+Keisan Gittens Do a two-sample t-test instead. I had the same problem.

[@rohanchung2185]

Thanks much. I got it now. God's blessings.

[@jogofwar99]

That was so elegantly explained!

[@angelaquinonez2450]

Makes sense, thank you!

[@anblanco8359]

Gracias💕

[@hortensiaaiello7476]

Hello Need help with the following: Determine the standardized test statistic, z, to test the claim about the population proportion p>0.015 given n=150 and Phat= 0.027 a=0.01 Your input is greatly appreciated. Thanks!

[@nicholasw326]

KEEP TEACHING PLEASE!!!!

[@VanessaGraulich]

thanks Nicholas. This is my new channel :) . Thanks for your message :)

[@itsnotmeitsyou4582]

i cant change the sign grater than to less than? on calculator?

[@lucasanderson2781]

THANK U 💯💯💯

[@winkella]

so helpful~~

[@legalizetaxevasion7222]

What if the standard deviation and mean are unknown?? I'm so lost...

[@rayserrato9519]

Very helpful, thanks.

[@kennycherry7684]

thanks it worked great

[@lordaikines7922]

Very helpful

[@gabrielle5587]

Can you please make a video using an example of finding the "z-score cut off" ?

[@niqueeify]

Thank you so much for this video, well explained !

[@bobbybob4561]

Null is not always "="

[@user-sd9qu5sj1s]

thank you

[@nickpastorino5370]

Every time I try go down to x (mean) on the t test part an error screen pops up. Why is my ti 84 doing this?

[@Jo-hx3df]

you are confusing your z-test with your t-test! You have a SD so you can not say this is a t-test!

[@lpsglitterpaws8536]

I feel like my cleaning lady is super smart!

[@VanessaGraulich]

lol, I am the author of the video and I thought this was hilarious. Go freedom of speech! VG .

[@alyssa447]

What if my p value is larger than the alpha level?

[@alyssa447]

+Vanessa Graulich alrighty makes sense. thank you so much I have huge project due soon and had no idea how to do this. big help.

[@rebeccaorford8213]

it should be right tail (cola) not right tale (cuento) .

[@chrismcamp]

Cardi B...... tighten me up on my B Stats...lol.... #MotorSport

[@nickd7986]

Yay

[@itsnotmeitsyou4582]

i need to get the test statistic? this wasn't helpful if you can tuse the fucking calculator! im so mad!

[@rawrzbarz]

#LifeSaver

[@Charango123quena]

hi the word is 'tail' not 'tale'...

[@chasef1077]

Charango123quena shut up

[@donnapodhurst6552]

what===== could not understand anything she said

[@ghostsnipertrue]

Not helpful thanks