Student's t-test

In this video Paul Andersen explains how to run the student's t-test on a set of data. He starts by explaining conceptually how a t-value can be used to determine the statistical difference between two samples. He then shows you how to use a t-test to test the null hypothesis. He finally gives you a separate data set that can be used to practice running the test.

Do you speak another language? Help me translate my videos:

Music Attribution

Intro
Artist: CosmicD
Creative Commons Atribution License

Outro
Title: String Theory
Artist: Herman Jolly

All of the images are licensed under creative commons and public domain licensing:

[cheekyboyz]

"...so, instead of this being known as the Gosset's t-test, it's known as the -" 
*cue smooth electronic beat*

[zainabmohammed]

I just started my PhD in Psychology and the program is extremely quantitative. It's been years since I've taken a stats test and watching your videos have seriously helped in me remember the basics. I'm so going to keep you in my prayers! Thank you for making it seem less scary.

[technoterror]

Dude somehow you don't make me want to die while learning this stuff haha, I wish my professor was more like you, thanks for the help!

[sj]

...I still have no clue 😭😭 Probably going to re-watch this a dozen times, cause it explains it better than my lecturer this year

[nickkraw]

Thank you for posting this! You explain statistics far better than most teachers!

[HafizBahar]

Finally! Someone who speaks english! Perfect video showing the real world applications and methodology to come to a conclusion, thank you so much for the entertaining lecture!

[michaelsoriano]

Thank you so much Coach Steve Kerr for this lecture video. Despite your busy schedule as the GSW Head Coach, you were still able to find time and record this important topic in Research.

[donovanlucibello]

Mr. Andersen, I have had the privilege to meet you in person and tell you, "Thank you!, " but it bears repeating here.

You have no idea how much you have helped me over the years to understand fundamental concepts that are glossed over in lecture leaving my head spinning unable to follow along. I get home, come to Youtube and watch you unravel the whole thing in < 15 minutes.

You are an exceptionally talented teacher, and your work does not go unnoticed. Thank you for your gift of quality instruction to complete strangers on the internet over many years now. I wish that more teachers would watch your style and emulate that rather than trying to rip through slides or go off on pointless rabbit trails during lecture. "Thank you!"

[DrChrisAbraham]

Was that helpful??
God! You have no idea how much I have struggled to wrap my head around this whole Statistics topics. And again, you have no idea what a boon your videos are turning out for me! Many many thanks, Bozeman! You the boss!

[simongonzalez]

This man needs ALL THE AWARDS.
Bruh got me through high school, college, and continues to help me refresh for job relating stuff.
This dude is single-handedly responsible for a quarter of millennial contribution to GDP. xD

[shraddha]

Crystal clear description of t- Test. I could finally understand this concept. Thank you !!

[mostinho]

Fantastic thank you
3:00 t-value formula compares difference in means to difference in variance of the samples. Like a signal to noise ratio.
4:55 once we have a t-value, we can read from the table and see what p-value that t-value corresponds to. That is the t-test, seeing if our t-value is high enough to give us a low p-value (and if so, then the difference in means is statistically significant and we can reject the null hypothesis)

[serenkuner]

Watched this during my second undergraduate year, come back as a PhD. student to watch it again :)

[tootscarlson]

For a person who really struggles with equations and statistics in general, you've explained this very well.

[eugenaharley]

I’ve learned more in this 10 mins then I have all semester 😩😩 Thank You so much🙏🏾

[Ureyeuh]

I just learned a semesters worth of work for my research in psych class from your account. I have used this account all throughout college. I owe you my tuition.

[Blueberrypancake]

This was so helpful! I haven't taken stats in years and have had to partially watch so many videos before finding this one. I really appreciate the clarity and step by step approach!

[ivantoroman]

What does it meeeaaan? Thanks for the video man

[bolajiadedasola]

you are indeed a great teacher. I love this video. I got a t critical which is greater than my t statistics and this establish the claim of the null hypothesis to be true, so I fail to reject the null hypothesis which means that there is no statistical significant difference between the samples. also, my probability value is greater than my alpha value, so this also tells me that my null hypothesis should not be rejected.

[netflixtvb]

It is a very great video, i learn t test in high school, pre-uni, year 1, master i graduate for 4 years and finally understand this after watching this video, i love youtube!