t-Test - Full Course - Everything you need to know

What is a t-test and when is it used? What types of t-tests are there? What are hypotheses and prerequisites in a t-test? How is a t-test calculated and how are the results interpreted?

The t-test is a statistical test procedure and checks whether there is a significant difference between the means of two groups.

There are three types of t-test: the one-sample t-test, the independent samples t-test and the paired samples t-test. We go through all three types in this video.

► t-Test Online Calculator

► t-Test Tutorial:

► t-Test for one sample Tutorial:

► t-Test for independent samples:

► t-Test for dependent samples:

► E-BOOK

Levene's test:

Normality test:

0:00 What does this video teach you about the t-test?
0:20 What is a t-test?
0:54 Types of t-Test
1:06 What is a t-test for one sample?
1:45 What is a t-test for independent samples?
2:28 What is a t-test for paired samples?
3:04 What is the difference between a dependent sample and an independent sample?
3:22 One sample t-test and the relationship to paired sample t-test.
4:08 What are the assumptions for a t-test?
5:15 What are the hypotheses in the t-test?
6:17 What do you need a t-test for?
7:25 How is a t-test calculated?
9:42 What does the p-value tell us about the t-test?
10:19 What is the significance level in a t-test?
11:03 How do I read the critical t-value?
13:12 Calculating the p-value for a t-test
13:50 Calculating a t-test online with DATAtab
14:17 Interpreting the results of the t-test
14:43 What is the difference between a one-sided and a two-sided t-test?

[dancole]

Much clearer than my university. What am I paying for?!

[DeathNight]

just rizzed up a girl by teaching her this, thank you so much

[fxsvcbl]

I am currently having to do some T-Test analysis as part of my MSc. For someone who has never encountered statistics before (at least not for a while), you have really helped me to understand this process. Many thanks.

[gustavomoreira]

best t-test explanation i’ve ever seen (and i’ve seen a lot)! congrats and thank you!

[jean-raynoldcolas]

Textbooks writers need to watch this video. Thank you ma’am for the video😍😍😍😍😍

[qoao]

This video literally saves me from my finals. Thank you for your efforts.

[hu]

Great video! My only critique/suggestion might be that it would also have been nice to see the actual math. That might be beyond where you wanted to go with this video, so maybe it’s a “part 2” or “Advanced” follow on video ;-). Anyhow, thanks!

[Tom-spgy]

This is the best explanation I’ve ever come across… I’ve even published research papers using t test but this really deepened my understanding

[robertferraro]

Very nicely and succinctly presented. What a great way to refresh knowledge one acquired over 40 years ago.

[AurellemaemakilanClaudel]

I'm a grade 10 high school student from the Philippines and we had to make an research. We need to use the T test in our research thank you so much I learned so mich🙏

[manikantashet]

Thanks so much! Finally have a clear understanding of t-test after so

[advocacynetworkafrica]

We deal with population groups and of recent are also combining qualitative and quantitative data analysis in our work. The t-Test course has come in handy for us because we refreshed our minds about many of the principles. Thanks.

[curryinahurry]

Thank you for posting this! Very easy to follow along

[purnendupatra]

Outstanding job!

Crystal, precise.... Classic German!

[mbouchra]

you're making biostatistics so easy !!!! THANK YOU !

[danielberhane]

I need to focus on my YouTube class, much more than I do to my university,
Wow thank you.

[AfghanMusicians]

Thank you so much for the very good and useful presentations
I really loved it !!!
Can we use these slides in our presentations? or they are copyrighted materials?

[z_htdja]

Hello. I just want a simple suggestion as to what type of statistics (Anova, chi-square, etc.) I should use to determine my goal below. I am truly confused yet optimistic for someone generous out there, and I would greatly appreciate any additional comments or suggestions to clarify or simplify my statement or claim here. Thank you in advance.

"Among the randomly selected senior students in the eight (4 public and 4 private) US south-west states (California, Arizona, New Mexico, and Texas), their responses are unanimous (strongly agree, agree, neutral, disagree, strongly disagree) as regards participating in home gardening rather than school gardening."

[kunalrai]

Extreamly helpful video, concepts are explained very well . Thank you so much mam

[ThubaMamba]

This video is so informative, highly recommended.