I am a student who is neurodiverse, that struggles when learning is limited to the classroom setting, time, presentation etc... and your mission is so helpful to me. Thank you so much for what you do.

Great simple graphics, no fancy professional statistician language to fly over my head. Finally FINALLY go these meanings. Thanks so much.

I have learnt the concept of p-value for more than 8 years and this is the first time that I fully understand the meaning of it with your straightforward illustration! Appreciate it!

I cannot thank enough for the videos! You literally saved my academic life!

3rd year stats student, still watches videos on what p-value is. Excellent video, thank you!

thank you for the explanation. I'm a statistics major student, but i barely remember this things and just trying to find out about the meaning of p-value again before my exam. I really appreciated your video. Thank you!

no linked video for critical value dude

I am finance professional, with age (42 now) I forget the concepts sometimes as i always believe to be rooted to the basics and thank you so much for your graphics and so well explained

I really wanted to say thanks to you because with this small, simple video and your outstanding illustration approach, you helped me to get my Udacity practical statistic project done as a part of their data analyst nano-degree. Thank you so much

Your instruction style is amazing! I really appreciate it. Thank you!

After receiving many explanations, I now FINALLY understand it thanks to you. Thank you for sharing your knowledge!

You are the best thing to happen to me in KZfaq !!!Finally i really got what is alpha and p value!

Thanks a ton for your classes on statistics. Your good work will add a lot of value to lot of people's career. It has generated a lot interested in me for statistics.

Thank you sir, your explanation has shed some light into my clouded mind when it comes to inferential statistics.

This is one of the best videos I have found explaining these concepts. Thanks a bunch!!

If only i had found this channel before my exams damn

This is very informative. I love the simplicity of your explanation. I just want to ask if there a specific critical value table for Jonckheere test? Thank you.

well explained !! Nothing better than making it understandable. You are better than books!!!

Such beautiful video. Direct and with amazing explanations! Thanks for sharing!

Thanks for the video! Probably the best that I've watched about this topic.

It can’t be explained any better. Thank you!!

Wow...so clear, concise, and easy to understand. Thank you!! I WAS struggling with the distinctions until THIS video. My LOC has increased:;)

oh the thing is making sense now ,Your demo is excellent ,I have watched ten videos to grab this concept of p value ,now i get it thanks

Very nicely explained. Slowly and calmly. Great video

You’re the boss, man

Thanks! This really helped me better understand the biostats portion of a presentation I have coming up.

I am literally crying and so glad I found this.

The best video that explains p value

I've watched a million videos on youtube and nothing compares with this, finally i understand p.

Thanks for de-complicating it! enjoyed watching the video and it clarified all my doubts!

Very nice video and good info. Which software have you used for the animated demonstration?

Finally, I've understood the p-value actual meaning from this video Thank you very much!

Thanks for your videos. Although my Psychology lecturer tried hard, I didnt understand a word he was saying. Thanks for your help.

Great video - thank you for taking the time to make this.

Great review. Clear explanation and humor (near the end). Take care.

May I ask what you platform you use to make the videos. It works smoothly whatever it is. Thank you for the stats help - it’s been a while!

yeah! studying while sitting on the can! knowledge!

Best video I've seen. Love it!

This was a WIN! 5 minutes well done!

Thank you very much for this video! It is really easy to understand.

Fantastic visualization. Thank you. I will share.

Absolutely perfect discussion. Thank you so much!

Thank you for the video. It clearly explains the concept of alpha and dividing it. Just a bit confused. You put the p-value without multiplying the p equivalent by 2, whereas for -z scores, we multiply the p equivalent by 2. Why is that the case?

omg!!!! you saved my life! THANK YOU!!!!!!!!!!!!!

Hey really got my doubts cleared......but when calculating the one tailed test why we are taking the critical value as 1.645 even though we are taking the 95% confidential level....

On a Std normal distribution table, Z-down = 1st digit...across = 2nd digit, correct? 100% based on the calculus of area under the curve, correct? So, how would 90 or 95% confidence instead affect the probability with same Z-score? Thanks from a middle-aged six sigma Green Belt student...

The standard deviation units are important as well.

So simple yet powerful. Thank you so much for this. I was literally struggling

Really a good video. You have a good methodology of teaching. It became much more clear for me after watching this video. But PLEASE upload the links you have mentioned several times in the video!

What if the given significance level is 0.025? Which alpha and a half would be 0.025/2= 0.0125 which is not on the top of the chi-square distribution table. How do I identify my critical/rejection region when alpha and half equals 0.0125

This is simply great.

Your lesson are super clear

When you explain the p-value. Isn't it 0.025 in each rejection region?

Excellent never ever seen such great details

Wonderful. Greatness of teaching... Thank you, statistics is really fun...now.

Great tutorial, sir! But, did not find the video.

I'm so confused. my book shows alpha .01 and alpha .05 and I dunno which one to use when I get t obt landing above t crit

can you explain the difference between F test T test Z test and Anova? Thanks!

this saved my life ty

Hi David, the links you mention in this video aren't there.

Love your videos. Keep it up, sir

im confused... beacsue alpah significance can be different and will result on diff outcome of rejecting or accepting null hyptthesis p value is used but i dont understand how p value solves this problem

excellent teaching. really easy n fun. the best.

Which tables you shown , i referred many but what you shown is not available, Pls guide the name of the table

Really well done.

you are simply great man

Thanks! A great video!

Can I use this for significance test?

thankyou this was really helpful!

actually helped with my cram session

Yes I gave you "like" , but would you please explain the Standard deviation and Standard Error . thank you

Thanks in a million. Awesome. Where have you been all these years? A+

I did not read comments to not confuse my head, please enlighten me. In your example we can say that if the Z is 2.6 we can reject the hypothesis.

there is no link in the there to tell us were the 1.96 comes from

Well aren't you a breath of fresh air.

PLUS

it is very helpful videos that I ever seen, can I contact u directly ?

I see no links to any of the videos you mentioned in this video.

Whence did you get the +/-1.96 for each tail? I would take it this ought to be +/-2.5, given a 95% confidence interval.

do you have a text book on this Ill like to buy it

Thanks God. Thank you for existing.

very clear explanation. thank you so much (y)

Is it always 95% confidence level?

Good. Please explain with an example.

Just a minor correction, in order to find the exact p-value for a two-tailed test, you must multiply the area beyond by two. Therefore, the two-tailed probability for a z-obtained of 2.6 would equal .0047 x 2 = .0094 (using the rounded table values in the back of a typical statistics book, but the exact probability is actually .009322 as obtained through this probability calculator: www.socscistatistics.com/pvalues/normaldistribution.aspx). What you will notice with this calculator is the p-value always doubles if you select two-tailed instead of one-tailed. (I teach statistics and was looking for a video to share with my students, but am afraid this error will throw them off. Is there a way for you to make a correction in the comments?)

thank you so much sir 🙏

OMG! This is so helpful!!!

Thank you sir!

Thanks much for your videos. I'm a follower. Please make one about MANCOVA and Bayesian. Thanks!

thanks its really slove my problem my teacher was unable to explain

Why are your test results t-scores?

where is the link for critical values ??

Good video.

I don't understand, why the 2.6 z score is in the rejection region, I thought the rejection region is 1.96 below, isn't it in the outside? I don't get it... :(

Nice video. Thanks.

Well finally i can understand null hypothesis.

Excellent. explains

Thank you very much.

Thanks it was helpful

I could not find the link ( at 0:27 ) which is for how to find the calculation to get 1.96. I need the relationship between p value of 0.05 and 1.96 please