Here 2 hours before my exam, wish me luck everyone this is a big one 😅
@valeng7192
5 ай бұрын
same 😭
@pumpkinshardx7242
4 ай бұрын
Howd it go?
@ayellaluja
4 ай бұрын
Real
@sh1nu_d1e
4 ай бұрын
same😢
@emmanueltecson8124
3 ай бұрын
me too😭😭
@accgarage2663
Ай бұрын
Very helpful. Thanks!
@Samanananananan
7 ай бұрын
Okay I won’t let a class get in my way 🥹
@sidneyfrattinijr.9700
Жыл бұрын
I can not believe that you really explained it so clearly in a 4min video. Kudos, my friend.
@AceTutors1
Жыл бұрын
Thank you so much for this amazing feedback. I sincerely appreciate you saying this
@sherrymilligan-turner2999
Жыл бұрын
I agree, you really put it into real terms as to what we are doing in the big picture.
@AceTutors1
Жыл бұрын
@@sherrymilligan-turner2999 I'm really glad you think so! :)
@theaveragemegaguy
2 жыл бұрын
Taking a data analytics class and they're going really quickly over the statistics. This helped a ton. THANK YOU!!!
@AceTutors1
2 жыл бұрын
You are so very welcome! I'm glad we could help you out!
@Lucid874
6 ай бұрын
2:08 I dont understand in what scenario I would not know the population standard deviation when I know the population mean. Could someone explain this to me please?
@gustavomontecinos2474
5 ай бұрын
You don't. What you have to do is assume the mean population. Since you have the other parameters you can sa for example, let's assume the mean population is "2", then you fill the rest of the formula and you are going to get the cumulative probability of that happening in the population. In summary, your mean population serves as an "X" that you can replace to see what's the most likely value, or better, the most likely interval.
@grhodes29
6 ай бұрын
Since you have to get the population mean in both and that can be difficult in many cases, I don't see how the t stat as any more valuable. You have the population mean in either z or t stat, getting the population SD is trivial. t stat would make more sense if you didn't have to have the population mean.
@guntervanderwalt7649
Жыл бұрын
Your ability to condense yet still pull apart such complex topics is a true talent! I checked your stats playlist... I would love to see a follow-up going from here into probability testing in normal samples! T-statistic to T-test would be a nice transition 😊
@j.o.s.h.o
2 жыл бұрын
that ending statement hitting home... Thank you for the words of encouragement and the very helpful video!
@AceTutors1
2 жыл бұрын
You are beyond welcome! Thank you for watching! :)
@Dragon-Slay3r
Жыл бұрын
What? scar was on the left chest to bring t down? barbarian gladiator
@willdodds7015
2 жыл бұрын
Thanks so much mate. Super clear and well explained video.
@AceTutors1
2 жыл бұрын
Thank you, Will, for watching!
@uzzyworldtv3445
5 ай бұрын
0:37 mew??? 😳🗿ERMM…. what the sigma????
@이지형-w1f
8 ай бұрын
Thank you for explaining the difference between z-score and z-statistics. I've been wondering about that so much! I have a question: you said it's unlikely that we know the population's standard deviation. But how would we know what the mu is then which is the population mean?
@nando5340
Жыл бұрын
In this scenario is it possible to find the z score ? With only this information available Scenario: Karen's T-score was 45. What is her z-score ?
@AceTutors1
Жыл бұрын
Great question! Unfortunately, no, there is not a way to convert t-scores to z-scores. Rather t-scores vs z-scores are used in different scenarios to describe certain situations and distributions
@rhodawealth3888
Жыл бұрын
No examples
@mykhaylodorozhovets6120
Жыл бұрын
In z-statistic sample meam is rundom an mi (population mean) is knowm, but in t-statisic sample mean is known and mi (population mean) is rundom value.
@marccepeci2980
4 ай бұрын
If you have the population mean, then can't you find the population standard deviation. The t-statistic uses the population mean but sample standard deviation If we can compute the population mean, then can't we compute the population standard deviation?
@MulingwaEric
5 ай бұрын
given population mean ,poulation deviation, sample mean and the sample size is less than thirty z=x-m/o/squareroot of n-1
@theeraphatsunthornwit6266
Жыл бұрын
I dare say that i didnt understand statistics because my teacher is dumb.😂 y did they never told me this? And those damn textbook too. They hired a grad student to translated them from english textbook and they did a really poor job.
@thunderstorm0826
Жыл бұрын
I’m a psychology student and failed statistics 1 once, passed next semester and then failed statistics 2 so I’m taking it this semester. It’s not that I’m bad at it but they just make it so dreadful. So glad I found this channel, I’m refreshing my memory from previous year and learning new stuff. Best of luck in everything and thank you!
@inesz.3500
Жыл бұрын
I'm a psych student too and I'm struggling in my first statistics class rn. They move so fast and it's so much information!
@thunderstorm0826
Жыл бұрын
@@inesz.3500 exactly 🥲 good luck!
@DESTIELWINCHESTER-q5w
5 ай бұрын
I'm a business administration student and I'm currently having this feeling that I might fail. So I'm here to study hard to not fail this subject 😢😢😢
@zantos4171
5 ай бұрын
oh, hi Mark
@Sir_Phuzy
10 ай бұрын
What if sample size is large but population standard deviation is not known?
@Nick-pi9sh
5 ай бұрын
THis GOOd
@michaelfarrow9387
2 жыл бұрын
Love that last line! You have big dreams dont let a class get in the way!
@AceTutors1
2 жыл бұрын
It is true! I hope we were able to help you succeed in your classes and make it one step closer to achieving your dreams!
@zcmicz
Жыл бұрын
oh my god, you mogg all the other videos to oblivion brother
@AceTutors1
Жыл бұрын
Thank you so much for that! I'm so happy you think so!
@Outlier_G
6 ай бұрын
Shakespeare way Thanks: Much thanks do I owe thee, for thy generous and noble deeds in elucidating the complexities of statistics. Thou art truly worthy of all praise for surpassing my professor's clarity. 🙏
@AceTutors1
6 ай бұрын
Hahah this comment is amazing! Thank you so much for the creative support!!
@radionnazmiev546
9 ай бұрын
My nigga, thank you very much. Ure the saviour!!!
@Jean-SimonLHOST
Жыл бұрын
What about the population mean mu ? How do we know it's value ?
@andrewhting
Жыл бұрын
Bruh, it was not too much information. In fact, It was all the information I needed to make everything click. Liked and subscribed as my way to say thank you.
@AceTutors1
Жыл бұрын
Thank you so much for your support and kind words!
@josephphiri3868
Ай бұрын
You could have given how S is determined.
@gurnoorsingh7469
Жыл бұрын
I have a question if population standard deviation and sample standard deviation both are given then what to do ? what to take z score or t score please reply i have exam in 2 days. really appreciate your work.
@AceTutors1
Жыл бұрын
I recognize this is pretty late, but if they give the population standard deviation, I would recommend using z's
@steven-qh9qy
3 ай бұрын
erm what the sigma...
@nullspace_xxii.
3 ай бұрын
keep yourself safe
@SkyRiderJavelin
Жыл бұрын
should use standard Definition so your content is accessible to all especially when chrome casting over wifi
@AceTutors1
Жыл бұрын
Thank you for the suggestion! I think you can adjust the video quality on your end with the Settings button below the video. That may help
@ambroshdev7737
Жыл бұрын
If n is greater that 30 and population standard deviation is unknown then can we use z statistic?
@AceTutors1
Жыл бұрын
Great question! When n is greater than 30, it is often a fair assumption to be able to use the normal distribution, AKA the Z-statistic
@tanejaankisetty285
4 ай бұрын
Probably best 4 minutes statistics class ever!
@arom6965
Жыл бұрын
Very helpful. I watched many videos before hitting this which was the best Alhamdulleah
@AceTutors1
Жыл бұрын
Thank you so much for your comment and support!
@JC-gp6bd
3 жыл бұрын
Excellent video to explain the difference!
@AceTutors1
3 жыл бұрын
Thank you so much for your positive words!
@LauraRoss-o8r
10 күн бұрын
Brown Laura Walker Barbara Gonzalez Barbara
@austinb3560
Жыл бұрын
My man really simplified that so well. Thank you. My masters stat teacher is so bad at teaching. The more he talks the more confusing he makes us. Honestly, the undergrad teacher was better at explaining it than him. I wish she taught it. Also, that ending statement was comforting. I hate how a hard class (feels like it) can determine your future. That was reassuring.
@AceTutors1
Жыл бұрын
I am so glad you found our content so helpful. It's stories like yours that keep us going. Thank you so much for your support.
@that.unknown
Ай бұрын
This is the first time in my entire life that I got to understand this concept. Before now, I just apply it without knowing what exactly it is about. lol quite embarassing for someone with about a decade of engineering experience and engineering postgraduate degrees. Thank you for making it so intuitive. This video is the best CPD I have done this year.
@SoumayaBoussaha-b3y
9 ай бұрын
can we interpret those probabilities of the normal distribution using the empirical rule like for exemple if we get a probability equal to 97.83%, we fo a approximation?? i hope you answer this plz!
@bentolhurst7067
Жыл бұрын
Perfect, thank you so much. Subscribed after hearing the sign off note!
@AceTutors1
Жыл бұрын
Thank you so much for your support! It's definitely something I believe and know some students can lose sight of when struggling with a class!
@emmabennett7699
Жыл бұрын
My ap stats exam is tomorrow I'm gonna try not to cry cause you made it a bit easier
@AceTutors1
Жыл бұрын
Hahah, well I'm glad we were able to make it a little bit easier! I hope it went well! :)
@unknownbrother273
Жыл бұрын
Thanks
@AceTutors1
Жыл бұрын
You are welcome :)
@salonip4269
Жыл бұрын
You explained it so well! You could maybe add examples next time. That will make the concept clearer
@AceTutors1
Жыл бұрын
Great idea! We'll make some example videos in the future!
@frontendprotogy6749
Жыл бұрын
i have been going through class notes for finals (like its literally entire month away when 15th week ended) and i rather confused with this two, and with difference between Z Score and Z Statistics, but not anymore... thanks a lot. so from my understanding T Statistics aproach Z statistics as N aproaches to infintiy right?
@anonuser12345
Жыл бұрын
This video was really helpful. Thank you for breaking it down nice and SIMPLE for us :)
@AceTutors1
7 ай бұрын
That's great to hear! Thanks for watching!
@prvizpirizaditweb2324
4 ай бұрын
but you did not explain. why are we using these tests in the firs place
@RavinHewage
2 ай бұрын
He did! You don’t have the population SD with you. That is when you go t :)
@saahisaac5965
Жыл бұрын
Your are blessing especially to me and others, may God bless you ❤
@AceTutors1
6 ай бұрын
Thank you so much for those kind words! And the same to you!
@starfreak2349
5 ай бұрын
Great. How do I know if the questions asking me to do one of them? Z and t questions always look the same but always need the different formulas
@meganedward2760
Жыл бұрын
This is the only video I could find that made sense to me. Thank you, very much.
@AceTutors1
Жыл бұрын
That is so great to hear! Thanks for watching!
@mtado4933
Жыл бұрын
i love u
@AceTutors1
7 ай бұрын
I love you right back!
@AsifKhan-o2k8b
12 күн бұрын
Today is my paper please pray
@AbdulrazaqAdewale
10 ай бұрын
Thanks very much, this did help alot. Buh what frequency table app can you recommend sir
@mandan8002
14 күн бұрын
Thanks man!
@murielsamuels4370
Жыл бұрын
Thank you. Instant subscribe! I love the quote at the end.
@AceTutors1
Жыл бұрын
Thank you so much! It is everything we are founded on! I'm glad you find inspiration in it
@weirdorahma
4 ай бұрын
dont let a class get in the way✨
@StringMichelle
3 ай бұрын
thank you so much for the clear explanation! i have a final test this morning and this video saved me last minutes!
@Eva-kt3tu
3 ай бұрын
what i can only say is thank you
@nasrinmutlu1571
Жыл бұрын
Thanks 👍 how are yt videos on stats better than any lecture 😭
@AceTutors1
Жыл бұрын
I'm so glad we were able to help! The best part is they're free ;)
@doglife2447
6 ай бұрын
I'll be honest with you, my professor simply stated you used the Z-Stats when the mean is unknown and t-Stats when the mean is known. That's all he said!! I've been searching for hours to find the real difference until I came across this video. Thank you again!
@KiethKapahu-p2u
20 күн бұрын
Champlin Orchard
@abexoxo
2 жыл бұрын
thanks for giving us a glimpse to a bigger picture.
@AceTutors1
Жыл бұрын
You're welcome! I'm glad you found it helpful
@thandoemmanuel8863
Жыл бұрын
This one is god sent ❤
@AceTutors1
Жыл бұрын
Hahah I'm glad you found it helpful! Thanks for the support!
@AmanYadav-dd3zc
Жыл бұрын
thank you so much for clearing my all doubts
@AceTutors1
Жыл бұрын
You are so welcome! Thanks for watching!
@yasminalonso4539
6 ай бұрын
super clear, and that motivation at the end of the video just made my day! thank you!
@leannechaput2342
Жыл бұрын
Love you! I appreciate your channel so much
@AceTutors1
Жыл бұрын
We love you too! Thanks for watching!
@abdelmagidmeezan6800
Ай бұрын
Valuable, Thanks
@tarkatirtha
Ай бұрын
Great explanation
@topmodelgardley3462
Жыл бұрын
Thank you so much for this video. I watched several other videos and read so many examples that did not help me comprehend this concept at all. I was trying to get an understanding of the z-score and t- statistic but I received so much more from this video. Remembering various formulas is difficult for me but actually understanding a concept allows me to make meaningful connections amongst criteria. Thanks again! I can finally move to my next problem phewwwwwww!
@AceTutors1
Жыл бұрын
Thank you so much for sharing your story! It's is stories like this that keep me going! I'm so happy that we were able to help!!! :)
@Andre-sz1ps
2 жыл бұрын
OBRIGADO!!! ESTAVA MESMO A PRECISAR DESTE VIDEO!
@AceTutors1
2 жыл бұрын
De nada! Obrigado por assistir! :)
@samkab677
Жыл бұрын
Can these be done in NON parametric tests Can these be done in non normally distributed data?
@NorrisClaude-v2c
24 күн бұрын
Cortney Courts
@Sean-es9zc
2 жыл бұрын
Thankss! But I wonder if there is really a difference between Z score and Z statistics? I'm confused about when the √n is used and when is not, as Z score and Z statistics are generally considered the same thing as what I can find on Google😢
@AceTutors1
2 жыл бұрын
Great question Sean! It may be helpful to think of them as pretty much the same thing at the end of the day. The formula that I give for z-statistics is the truest form of the equation. The z-score equation is the same thing without the square root of n. That is because it is used to find the z score for a single value within a sample. Since it is a single value, n is equal to 1 which is why it disappears in that formula.
@Sean-es9zc
2 жыл бұрын
@@AceTutors1 Thank you so much!!
@AceTutors1
2 жыл бұрын
@@Sean-es9zc You are so welcome Sean!
@Sean-es9zc
Жыл бұрын
@@AceTutors1 Thank you so much for answering my query 3 months ago! As I look into where the √n comes from through mathematical derivation, I noticed that it is from the number of values taken into account to calculate variance, so when we take the square root of σ2, we will get the √n in the denominator. As I look into your video again, and fit it into the context of Z-score/statistic as explained by you, the Z-statistic with the denominator of √n is used to find 1 sample mean from a population, I reckon my understanding might be correct and would like to hear your thoughts to see if you would validate the following deductive reasoning: Does it make sense to say that the denominator in Z-statistic (Standard error) is the standard deviation of sample means, therefore the variance of the sum of squared of sample means from the population mean, and the "n" here refers to the number of sample statistics?
@jc.eh.123
Жыл бұрын
Lmao, all these months 🙃 and i missed this
@AceTutors1
Жыл бұрын
Whoops ;) Pass us along to help others!
@devrao3537
3 ай бұрын
THANK YOU!
@tanteckleng5062
10 ай бұрын
great video explain concept in a few minutes. 👍👍👍👍
@marwangoesfit6398
Жыл бұрын
extremely simple and helpful, thank u
@AceTutors1
Жыл бұрын
That's what we aim for! Thank you for watching!
@rayanyassin2371
2 жыл бұрын
Thank you. that was helpful :)
@AceTutors1
2 жыл бұрын
You are welcome! Thanks for watching!
@palantir6165
2 жыл бұрын
But how do you have the population mean?
@AceTutors1
2 жыл бұрын
Awesome question! You will see t-statistics used in a couple different contexts, but the most frequent one is hypothesis testing. In hypothesis testing for means, you are trying to test a null hypothesis to see whether your population mean is equal to some value. You don't actually have the true population mean. Instead, you will use this proposed value in the formula as your population mean, mu, and essentially see how it compares to the mean you collect from a sample, x-bar, (taking into the sample standard deviation and sample size). The resulting t-statistic will ultimately be a measure of how far away your sample mean is from the proposed population mean (from the null hypothesis) and how confident you can be that the true population mean is different than that proposed value. Let us know if you have any other questions!
@waleedmahmood2004-
6 ай бұрын
tbh your video and other KZitem tutorials of hardly 5 minutes are way better than a professor teaching for 1.5 hr.
@ddozzi
4 ай бұрын
Im fucked
@avery9879
5 ай бұрын
THANK YOU
@cynthiaulloa8325
4 ай бұрын
best explanation i've ever seen. most helpful video on youtube.
@mypseudonym8189
3 ай бұрын
Thanks
@styleofmusic2004
2 жыл бұрын
Very useful videos, thanks a lot
@AceTutors1
2 жыл бұрын
I'm glad we were able to help! Thanks for watching and thanks for the support!
@evanzack2142
10 ай бұрын
thank you
@sapaccountant
Жыл бұрын
very well explained, thanks
@AceTutors1
Жыл бұрын
You are very welcome! Thanks for your comment!
@NolanPoole-f1f
7 ай бұрын
GOAT
@weilantao4857
2 жыл бұрын
Thank you for helping out
@AceTutors1
2 жыл бұрын
You are very welcome! Thanks for watching!
@refaakram6359
2 жыл бұрын
You made nit super easy! Thanks
@AceTutors1
2 жыл бұрын
You are so welcome! Thanks for watching!
@sakshi-gm6je
9 ай бұрын
Wow
@hannaholding7742
Жыл бұрын
Thank you!! I needed this!!
@AceTutors1
Жыл бұрын
Thank you for watching!
@kirin4244
8 ай бұрын
That was extremely helpful. Thank you!
@NikitaSharma-bs4gg
2 жыл бұрын
it was very helpful
@AceTutors1
2 жыл бұрын
Thanks so much for watching! I'm glad you found it helpful!
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