Z-Statistics vs. T-Statistics EXPLAINED in 4 Minutes

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  • Опубліковано 24 гру 2024

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  • @sidneyfrattinijr.9700
    @sidneyfrattinijr.9700 2 роки тому +180

    I can not believe that you really explained it so clearly in a 4min video. Kudos, my friend.

    • @AceTutors1
      @AceTutors1  2 роки тому +7

      Thank you so much for this amazing feedback. I sincerely appreciate you saying this

    • @sherrymilligan-turner2999
      @sherrymilligan-turner2999 2 роки тому +3

      I agree, you really put it into real terms as to what we are doing in the big picture.

    • @AceTutors1
      @AceTutors1  2 роки тому +1

      @@sherrymilligan-turner2999 I'm really glad you think so! :)

  • @tayelorszn6635
    @tayelorszn6635 8 місяців тому +238

    Here 2 hours before my exam, wish me luck everyone this is a big one 😅

  • @doglife2447
    @doglife2447 9 місяців тому +8

    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!

  • @xcissor_zw
    @xcissor_zw 2 місяці тому +2

    This is the most understable video on this topic UA-cam wide

  • @guntervanderwalt7649
    @guntervanderwalt7649 Рік тому +15

    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 😊

  • @thunderstorm0826
    @thunderstorm0826 Рік тому +4

    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
      @inesz.3500 Рік тому +1

      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
      @thunderstorm0826 Рік тому

      @@inesz.3500 exactly 🥲 good luck!

    • @DESTIELWINCHESTER-q5w
      @DESTIELWINCHESTER-q5w 8 місяців тому

      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 😢😢😢

  • @theaveragemegaguy
    @theaveragemegaguy 2 роки тому +31

    Taking a data analytics class and they're going really quickly over the statistics. This helped a ton. THANK YOU!!!

    • @AceTutors1
      @AceTutors1  2 роки тому +1

      You are so very welcome! I'm glad we could help you out!

  • @tanejaankisetty285
    @tanejaankisetty285 7 місяців тому +2

    Probably best 4 minutes statistics class ever!

  • @that.unknown
    @that.unknown 4 місяці тому

    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.

  • @j.o.s.h.o
    @j.o.s.h.o 2 роки тому +29

    that ending statement hitting home... Thank you for the words of encouragement and the very helpful video!

    • @AceTutors1
      @AceTutors1  2 роки тому +4

      You are beyond welcome! Thank you for watching! :)

  • @2340-i9y
    @2340-i9y Місяць тому

    dude i was trying to get this concept for a few months now, my mid is in a week and omg this saved me! Thank you so so much!!

  • @Outlier_G
    @Outlier_G 9 місяців тому +1

    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
      @AceTutors1  9 місяців тому

      Hahah this comment is amazing! Thank you so much for the creative support!!

  • @austinb3560
    @austinb3560 2 роки тому +2

    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
      @AceTutors1  2 роки тому

      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.

  • @michaelfarrow9387
    @michaelfarrow9387 2 роки тому +4

    Love that last line! You have big dreams dont let a class get in the way!

    • @AceTutors1
      @AceTutors1  2 роки тому

      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!

  • @andrewhting
    @andrewhting Рік тому +1

    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
      @AceTutors1  Рік тому

      Thank you so much for your support and kind words!

  • @manusaini13
    @manusaini13 Місяць тому

    BRILLIANT! SO EASY TO UNDERSTAND IT NOW. I HAVE INTUITIVE UNDERSTANDING OF THIS NOW. THANK YOU!

  • @waleedmahmood2004-
    @waleedmahmood2004- 9 місяців тому +3

    tbh your video and other UA-cam tutorials of hardly 5 minutes are way better than a professor teaching for 1.5 hr.

  • @StringMichelle
    @StringMichelle 6 місяців тому

    thank you so much for the clear explanation! i have a final test this morning and this video saved me last minutes!

  • @saahisaac5965
    @saahisaac5965 Рік тому +1

    Your are blessing especially to me and others, may God bless you ❤

    • @AceTutors1
      @AceTutors1  9 місяців тому

      Thank you so much for those kind words! And the same to you!

  • @meganedward2760
    @meganedward2760 Рік тому +1

    This is the only video I could find that made sense to me. Thank you, very much.

    • @AceTutors1
      @AceTutors1  Рік тому

      That is so great to hear! Thanks for watching!

  • @arom6965
    @arom6965 2 роки тому +1

    Very helpful. I watched many videos before hitting this which was the best Alhamdulleah

    • @AceTutors1
      @AceTutors1  Рік тому

      Thank you so much for your comment and support!

  • @willdodds7015
    @willdodds7015 3 роки тому +8

    Thanks so much mate. Super clear and well explained video.

    • @AceTutors1
      @AceTutors1  3 роки тому

      Thank you, Will, for watching!

  • @cynthiaulloa8325
    @cynthiaulloa8325 7 місяців тому

    best explanation i've ever seen. most helpful video on youtube.

  • @이지형-w1f
    @이지형-w1f 10 місяців тому +1

    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?

  • @mahaylahelliott4965
    @mahaylahelliott4965 Місяць тому

    Thank you! Nice and simple 😊❤ also love the end quote

  • @Anagha-Krishnan03
    @Anagha-Krishnan03 Місяць тому +1

    please post a video on how to solve problems using Z and T statistics

  • @bentolhurst7067
    @bentolhurst7067 Рік тому +1

    Perfect, thank you so much. Subscribed after hearing the sign off note!

    • @AceTutors1
      @AceTutors1  Рік тому

      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!

  • @kamathmanoj
    @kamathmanoj 27 днів тому

    WOW! Just WOW ! This was awesome! Thank you

  • @mykhaylodorozhovets6120
    @mykhaylodorozhovets6120 Рік тому +1

    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.

  • @JC-gp6bd
    @JC-gp6bd 3 роки тому +3

    Excellent video to explain the difference!

    • @AceTutors1
      @AceTutors1  3 роки тому

      Thank you so much for your positive words!

  • @chrmilling
    @chrmilling Місяць тому +1

    Amazing! Thank you so much!

  • @yasminalonso4539
    @yasminalonso4539 9 місяців тому

    super clear, and that motivation at the end of the video just made my day! thank you!

  • @salonip4269
    @salonip4269 Рік тому +1

    You explained it so well! You could maybe add examples next time. That will make the concept clearer

    • @AceTutors1
      @AceTutors1  Рік тому

      Great idea! We'll make some example videos in the future!

  • @leannechaput2342
    @leannechaput2342 2 роки тому +1

    Love you! I appreciate your channel so much

    • @AceTutors1
      @AceTutors1  Рік тому

      We love you too! Thanks for watching!

  • @niranjanluitel1557
    @niranjanluitel1557 Рік тому +1

    Thank You for the video! You should make an entire playlist completely decicated to Stats and more of your knowledge. This is one of the finest explanations

  • @ashishkumarmajhi4750
    @ashishkumarmajhi4750 Рік тому

    Great video

  • @emmabennett7699
    @emmabennett7699 Рік тому +1

    My ap stats exam is tomorrow I'm gonna try not to cry cause you made it a bit easier

    • @AceTutors1
      @AceTutors1  Рік тому +1

      Hahah, well I'm glad we were able to make it a little bit easier! I hope it went well! :)

  • @miayashin8686
    @miayashin8686 11 днів тому

    exactly what I needed! thank you.

  • @topmodelgardley3462
    @topmodelgardley3462 2 роки тому +4

    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
      @AceTutors1  Рік тому +1

      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!!! :)

  • @murielsamuels4370
    @murielsamuels4370 2 роки тому +1

    Thank you. Instant subscribe! I love the quote at the end.

    • @AceTutors1
      @AceTutors1  2 роки тому

      Thank you so much! It is everything we are founded on! I'm glad you find inspiration in it

  • @hannaholding7742
    @hannaholding7742 Рік тому +1

    Thank you!! I needed this!!

  • @hanafinuryasin
    @hanafinuryasin Місяць тому

    Good explanation, thanks

  • @angelinaromero9193
    @angelinaromero9193 Рік тому

    I like how well explained is...thanks!

  • @grhodes29
    @grhodes29 9 місяців тому +2

    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.

  • @kirin4244
    @kirin4244 10 місяців тому

    That was extremely helpful. Thank you!

  • @AmanYadav-dd3zc
    @AmanYadav-dd3zc Рік тому +1

    thank you so much for clearing my all doubts

    • @AceTutors1
      @AceTutors1  Рік тому

      You are so welcome! Thanks for watching!

  • @Lucid874
    @Lucid874 9 місяців тому +2

    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
      @gustavomontecinos2474 8 місяців тому

      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.

  • @jewelminor5526
    @jewelminor5526 11 місяців тому

    Thank you so much for your early clarification!

  • @accgarage2663
    @accgarage2663 4 місяці тому

    Very helpful. Thanks!

  • @ahmadabdul7807
    @ahmadabdul7807 Місяць тому

    very educative and interesting

  • @abexoxo
    @abexoxo 2 роки тому +1

    thanks for giving us a glimpse to a bigger picture.

    • @AceTutors1
      @AceTutors1  2 роки тому

      You're welcome! I'm glad you found it helpful

  • @anonuser12345
    @anonuser12345 Рік тому +1

    This video was really helpful. Thank you for breaking it down nice and SIMPLE for us :)

    • @AceTutors1
      @AceTutors1  10 місяців тому

      That's great to hear! Thanks for watching!

  • @thandoemmanuel8863
    @thandoemmanuel8863 Рік тому +2

    This one is god sent ❤

    • @AceTutors1
      @AceTutors1  Рік тому

      Hahah I'm glad you found it helpful! Thanks for the support!

  • @tarkatirtha
    @tarkatirtha 4 місяці тому

    Great explanation

  • @marwangoesfit6398
    @marwangoesfit6398 2 роки тому +1

    extremely simple and helpful, thank u

    • @AceTutors1
      @AceTutors1  2 роки тому

      That's what we aim for! Thank you for watching!

  • @tanteckleng5062
    @tanteckleng5062 Рік тому

    great video explain concept in a few minutes. 👍👍👍👍

  • @farazkhanireland
    @farazkhanireland 2 роки тому +1

    very well explained, thanks

    • @AceTutors1
      @AceTutors1  Рік тому

      You are very welcome! Thanks for your comment!

  • @outlawreader
    @outlawreader Рік тому

    This is great. Thank you.

  • @MulingwaEric
    @MulingwaEric 8 місяців тому

    given population mean ,poulation deviation, sample mean and the sample size is less than thirty
    z=x-m/o/squareroot of n-1

  • @styleofmusic2004
    @styleofmusic2004 2 роки тому +1

    Very useful videos, thanks a lot

    • @AceTutors1
      @AceTutors1  2 роки тому

      I'm glad we were able to help! Thanks for watching and thanks for the support!

  • @Andre-sz1ps
    @Andre-sz1ps 2 роки тому +2

    OBRIGADO!!! ESTAVA MESMO A PRECISAR DESTE VIDEO!

    • @AceTutors1
      @AceTutors1  2 роки тому +1

      De nada! Obrigado por assistir! :)

  • @a7medmostafaabuhatab
    @a7medmostafaabuhatab 10 місяців тому

    Very clear explanation

  • @AbdulrazaqAdewale
    @AbdulrazaqAdewale Рік тому

    Thanks very much, this did help alot. Buh what frequency table app can you recommend sir

  • @Tisha030
    @Tisha030 Рік тому

    perfectly explained 🎉

  • @UrN0tM7777
    @UrN0tM7777 7 днів тому +2

    Here the night before the exam.

  • @nasrinmutlu1571
    @nasrinmutlu1571 Рік тому +1

    Thanks 👍 how are yt videos on stats better than any lecture 😭

    • @AceTutors1
      @AceTutors1  Рік тому

      I'm so glad we were able to help! The best part is they're free ;)

  • @sanyaa2907
    @sanyaa2907 6 місяців тому

    thank you for the explanation

  • @JieChen-st1uc
    @JieChen-st1uc 8 місяців тому

    You are a genius!

  • @refaakram6359
    @refaakram6359 3 роки тому +1

    You made nit super easy! Thanks

    • @AceTutors1
      @AceTutors1  3 роки тому

      You are so welcome! Thanks for watching!

  • @starfreak2349
    @starfreak2349 8 місяців тому

    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

  • @weilantao4857
    @weilantao4857 2 роки тому +1

    Thank you for helping out

    • @AceTutors1
      @AceTutors1  2 роки тому

      You are very welcome! Thanks for watching!

  • @abdelmagidmeezan6800
    @abdelmagidmeezan6800 4 місяці тому

    Valuable, Thanks

  • @gurnoorsingh7469
    @gurnoorsingh7469 Рік тому +1

    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
      @AceTutors1  Рік тому

      I recognize this is pretty late, but if they give the population standard deviation, I would recommend using z's

  • @rayanyassin2371
    @rayanyassin2371 2 роки тому +1

    Thank you. that was helpful :)

    • @AceTutors1
      @AceTutors1  2 роки тому

      You are welcome! Thanks for watching!

  • @leshowles749
    @leshowles749 2 роки тому +1

    Thank you. Nicely and clearly explained. So simple but other tutorials don’t present it like you did.

    • @AceTutors1
      @AceTutors1  2 роки тому

      Thank you so much for your kind words and positive feedback! :)

  • @suhatharsanyoganathapillai2203

    Thank You

  • @devrao3537
    @devrao3537 5 місяців тому

    THANK YOU!

  • @suzanneg9532
    @suzanneg9532 11 місяців тому

    Thank you!

  • @mandan8002
    @mandan8002 3 місяці тому

    Thanks man!

  • @kangur8391
    @kangur8391 Рік тому

    Amazing thank you

  • @NikitaSharma-bs4gg
    @NikitaSharma-bs4gg 3 роки тому +1

    it was very helpful

    • @AceTutors1
      @AceTutors1  2 роки тому

      Thanks so much for watching! I'm glad you found it helpful!

  • @MC-nq4yl
    @MC-nq4yl Місяць тому

    However, for n bigger than 30, whenever pop SD is unknown, it is recommended to use the z-table and not the t-table (according to Google). Can you explain or refute that?

  • @bradtitt7572
    @bradtitt7572 Рік тому +1

    Saved again!

    • @AceTutors1
      @AceTutors1  Рік тому

      Haha thank you for your feedback!

  • @avery9879
    @avery9879 7 місяців тому

    THANK YOU

  • @frontendprotogy6749
    @frontendprotogy6749 Рік тому

    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?

  • @SkyRiderJavelin
    @SkyRiderJavelin 2 роки тому +1

    should use standard Definition so your content is accessible to all especially when chrome casting over wifi

    • @AceTutors1
      @AceTutors1  2 роки тому

      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

  • @SoumayaBoussaha-b3y
    @SoumayaBoussaha-b3y Рік тому

    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!

  • @solvinglife6658
    @solvinglife6658 Рік тому +1

    Perfect!

  • @Samanananananan
    @Samanananananan 10 місяців тому +3

    Okay I won’t let a class get in my way 🥹

  • @izadizhan
    @izadizhan Рік тому

    kudos ! thank youuuu

  • @Sir_Phuzy
    @Sir_Phuzy Рік тому

    What if sample size is large but population standard deviation is not known?

  • @samkab677
    @samkab677 Рік тому

    Can these be done in NON parametric tests
    Can these be done in non normally distributed data?

  • @ambroshdev7737
    @ambroshdev7737 2 роки тому +1

    If n is greater that 30 and population standard deviation is unknown then can we use z statistic?

    • @AceTutors1
      @AceTutors1  Рік тому

      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

  • @weirdorahma
    @weirdorahma 7 місяців тому

    dont let a class get in the way✨

  • @Eva-kt3tu
    @Eva-kt3tu 6 місяців тому

    what i can only say is thank you

  • @mwmwmwthuthuthu8150
    @mwmwmwthuthuthu8150 2 роки тому +1

    Wonderful

  • @trent_tsu
    @trent_tsu 3 роки тому +1

    thank u sooo much

  • @Sean-es9zc
    @Sean-es9zc 2 роки тому +1

    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
      @AceTutors1  2 роки тому +1

      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
      @Sean-es9zc 2 роки тому +1

      @@AceTutors1 Thank you so much!!

    • @AceTutors1
      @AceTutors1  2 роки тому

      @@Sean-es9zc You are so welcome Sean!

    • @Sean-es9zc
      @Sean-es9zc 2 роки тому

      @@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?

  • @sebastianflores9587
    @sebastianflores9587 2 роки тому +1

    thanks

  • @Jean-SimonLHOST
    @Jean-SimonLHOST Рік тому

    What about the population mean mu ? How do we know it's value ?