P-value calculations: Understanding where the p-value comes from

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  • Опубликовано: 23 окт 2024

Комментарии • 64

  • @k.w.1742
    @k.w.1742 3 года назад +2

    Thanks so much. You saved my statistics course. I found it really better than our lecturer at Imperial. Now I can't believe I paid 30,000 to them.

    • @DrNic
      @DrNic  3 года назад +1

      Great to hear! Feel free to contribute to my channel at a more modest $5 a month. ruclips.net/channel/UCG32MfGLit1pcqCRXyy9cAgjoin

  • @saeedalzahrani8449
    @saeedalzahrani8449 4 года назад +2

    Always my best channel to learn Stat

  • @nagasatya2585
    @nagasatya2585 3 года назад

    The tutorial collection is really good! It covers concepts that need hours of continuous lectures in college in a much simpler way. Thank you for the knowledge.

    • @DrNic
      @DrNic  3 года назад +2

      You're very welcome! I taught at university for many years and have drawn on my experience there to make the videos. I'm glad they are helping.

  • @danielniels22
    @danielniels22 3 года назад

    hello Dr Nic, i'm very new into your channel, and I just noticed that some of your videos are like 9 years old, but I am very grateful that you are still uploading a lot of knowledges... I want to say thank you for helping all of us to learn statistics.
    i'm now in an early year of engineering college which is non Math/Statistics major. But i suddenly have interests in AI and Machine Learning, which are out of my faculty scope of curriculum. So i started to self-learn from books, internets, and luckily i found your channel. 😁 (i mean why didn't I find your channel like years ago 😭)
    I hope i can always enjoy every knowledge from now on, and can build a strong math and statistics fundamentals through your Channel, so I can pursue in AI/ML career. Thank you very much Dr Nic! 😊🙏

    • @DrNic
      @DrNic  3 года назад +1

      Thanks Daniel - I hope you continue to learn. Isn't RUclips wonderful for helping us to learn things of all sorts. It taught me to crochet. Infinitely patient and repeatable - unlike many people.

  • @tianboqu7469
    @tianboqu7469 Год назад +2

    Thank you so much for this content, you are a saviour!

    • @DrNic
      @DrNic  Год назад +1

      Happy to help!

  • @nursesofyaalqahtaniy7424
    @nursesofyaalqahtaniy7424 4 года назад +2

    love you and the way you make it easy for us to understand

    • @DrNic
      @DrNic  4 года назад

      Thanks - it's a fun challenge.

  • @عموگرجی
    @عموگرجی 2 года назад +1

    Very very very Good for you! you open a very difficult lock from my mind by this video. Thanks a million! God save you and bless you!

    • @DrNic
      @DrNic  2 года назад

      Glad it helped

  • @giulliasp8821
    @giulliasp8821 5 месяцев назад

    Thank you so much!
    Hugs from Brazil 😊

  • @navnav8730
    @navnav8730 10 месяцев назад

    So, it means we can reject the null hypothesis if the p is 0.02? Also, thank you a lot Dr.Nic, you made Statistics more enjoyable for me!
    Edit: I cannot access the web content anymore and it said 404 web page not found. Could you kindly check that as well?

  • @Jojohumf
    @Jojohumf 2 года назад

    Thanks, doing my dissertation for dentistry, thanks for the video

    • @DrNic
      @DrNic  2 года назад

      Glad it was helpful!

  • @ayseyilmaz6060
    @ayseyilmaz6060 2 года назад +1

    Thank you for your channel .

    • @DrNic
      @DrNic  2 года назад

      Welcome!

  • @alphabetgagalac7045
    @alphabetgagalac7045 4 года назад

    Thank you Dr. Nic. Great help!

    • @DrNic
      @DrNic  4 года назад

      My pleasure!

  • @TokenRing1024
    @TokenRing1024 4 года назад +3

    that clarified things

    • @DrNic
      @DrNic  4 года назад

      Glad to hear it. The p-value is a difficult concept and it has taken me a while to get the nerve to make this video.

  • @seasonalfog
    @seasonalfog 3 года назад

    Your channel is so helpful!

    • @DrNic
      @DrNic  3 года назад

      Glad you think so!

  • @sohasanad5354
    @sohasanad5354 4 года назад

    Beautiful explanation, thank you so much!

    • @DrNic
      @DrNic  4 года назад

      Thanks. It is so nice to have my efforts appreciated.

  • @joycecorsinilueneberg4343
    @joycecorsinilueneberg4343 3 года назад

    Amazing way to explain!!!

    • @DrNic
      @DrNic  3 года назад

      Glad it was helpful! It has taken a while to work out how to make it clear.

  • @ajaiarora4711
    @ajaiarora4711 3 года назад

    Hi ! I m one of the fan of your videos . 👍👍thanks 🙏🏻

    • @DrNic
      @DrNic  3 года назад

      Glad you like them!

  • @abdallahsiboukeur8070
    @abdallahsiboukeur8070 4 года назад +1

    thank you so much for rhe great explanation. i want to ask you if i can use it in teaching??

    • @DrNic
      @DrNic  4 года назад

      Hi Abdallah
      You are most welcome to use any or all of the videos in your teaching. You can see them all described on our website: creativemaths.net/videos/
      If you would like to support my endeavours you could become a channel member. This also gives you access to some more videos: ruclips.net/channel/UCG32MfGLit1pcqCRXyy9cAgjoin
      Best wishes
      Nic

  • @amiirnuur4430
    @amiirnuur4430 4 года назад +1

    Than you alot

  • @trchri
    @trchri 4 года назад

    My favorite scene from any if your videos was when you said “In general,” and had a picture of Napoleon (I think). Also, when the question was “Male or Female” and the researcher was yelling at the subject “Make your choice!”

    • @DrNic
      @DrNic  4 года назад

      I know. My son used to edit my videos, or put a final funny touch on them and he has a real talent for it. He makes me laugh out loud at my own videos. I'm not as funny, though I do try to keep a light touch. I'm hoping my clear explanations will keep people coming back.

  • @sagarlokare5269
    @sagarlokare5269 Год назад

    This is awesome, thank you

    • @DrNic
      @DrNic  Год назад

      Glad you like it!

  • @badbad6163
    @badbad6163 2 года назад

    i think this is very well explained. thank you :)

    • @DrNic
      @DrNic  2 года назад

      Glad you think so!

  • @fishwiththesmile6216
    @fishwiththesmile6216 3 года назад

    great video. thank you

    • @DrNic
      @DrNic  3 года назад

      Glad you liked it!

  • @Sam-zr1rj
    @Sam-zr1rj 2 года назад

    I can recommend this video!

    • @DrNic
      @DrNic  2 года назад

      Please do!

  • @madeeasynotesinanesthesiaa4255

    Thank you so much

    • @DrNic
      @DrNic  Год назад

      You are most welcome

  • @abinetergando9719
    @abinetergando9719 3 года назад +1

    thanks this is cool

    • @DrNic
      @DrNic  3 года назад

      I do my best

  • @steve30704
    @steve30704 2 года назад

    You ARE amazing!

  • @ahmeddia0174
    @ahmeddia0174 Год назад

    Thank you

    • @DrNic
      @DrNic  Год назад

      You're welcome

  • @sagarlokare5269
    @sagarlokare5269 Год назад

    Could you help us to show how to select random samples from a dataset in Excel for hypothesis

    • @DrNic
      @DrNic  Год назад

      This video is good: ruclips.net/video/q8fU001P2lI/видео.html

  • @renjing
    @renjing 3 года назад

    My book says that when using the t-distribution, one should replace that s/sqrt(n) by s/sqrt(n-1)

    • @DrNic
      @DrNic  3 года назад

      This is not something I've heard of. For sample standard deviation you use n-1 in the denominator as opposed to the population standard deviation. But for the standard error, it is customary to use s/sqrt n. Perhaps you or the book have those two calculations confused?

    • @renjing
      @renjing 3 года назад

      @@DrNic Ah, maybe it was me who got confused. May I check with you: Now after we calculate the sum of squares for the sample, we divide it by by (n-1) instead of by n? (and then take its square to get sample standard deviation) May I ask one more question, please: In this example, do we have to know that the population follows a normal distribution to use the t test, especially when the sample size is small?

  • @chinujoseph4469
    @chinujoseph4469 4 года назад

    Thanks 💕💕💕💕

    • @DrNic
      @DrNic  4 года назад

      You're welcome 😊

  • @satishsutar5102
    @satishsutar5102 4 года назад

    When sample size is 250 and population sd is unknown which test should i use tscore or z score ?

    • @DrNic
      @DrNic  4 года назад

      With a sample that size there is no difference.

  • @isaiahmacadam
    @isaiahmacadam 4 года назад +1

    Regardless, thanks for putting this together! Good explanation!

  • @isaiahmacadam
    @isaiahmacadam 4 года назад +1

    Like the video before I’ve finished it?

    • @DrNic
      @DrNic  4 года назад +1

      Of course! ;)