Hypothesis testing

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  • Опубликовано: 11 сен 2024

Комментарии • 55

  • @gregmartin
    @gregmartin  Год назад

    Get my FREE cheat sheets for Statistics and Research Methods (including transcripts of these lessons) here: www.learnmore365.com/courses/statistics-research-methods-resource-library

    • @mesfinmekuria5694
      @mesfinmekuria5694 2 месяца назад

      Dear lecturer, I'm very happy with your youtube video presentation because I have been getting valuable inputs for my PhD study. Thank you, but would you please share me if you have a youtube video on the students' speaking performance in English language classroom?

  • @mikehynz
    @mikehynz 8 месяцев назад

    I love when someone makes a video explaining a concept so well that I only have to watch once, but still choose to watch twice

  • @cyg7655
    @cyg7655 2 года назад +2

    Very clearly explained thank you. However, I believe you could have briefly mentionned the central limit theorem to justify why under the null hypothesis we expect a normal distribution of sampled means. Otherwise, this is by far the best/most efficient explanation on the internet. THANK YOU :)

  • @haraldurkarlsson1147
    @haraldurkarlsson1147 2 года назад +3

    Martin,
    Could you do a video on survival analysis one day? I would love to see your handling of the topic (and if you could couple it with R that would be even better).

    • @gregmartin
      @gregmartin  2 года назад +2

      will do :) and by the way, I have an R programming channel (R programming 101)

  • @simonaydevos1775
    @simonaydevos1775 2 года назад +2

    Thanks Greg!
    First year doing MPH courses, and finding your videos very helpful!

    • @gregmartin
      @gregmartin  2 года назад

      Glad to help! Best of luck on your MPH journey, Simonay :)

  • @joyferdinand
    @joyferdinand 2 года назад +1

    Thank you, Greg, I really found this video helpful. this is the first time I am taking statistics courses and sometimes it seems pretty overwhelming.

    • @gregmartin
      @gregmartin  2 года назад

      Glad it was helpful! Thank you for the feedback. You can do it!

  • @IamGodSon
    @IamGodSon 2 года назад +2

    Thanks so much. For those without an MPH, but in global health, holler at your boy!

  • @jamesleleji6984
    @jamesleleji6984 2 года назад +2

    Thanks for your lucid explanation.
    Please can you do a randomized control trial video using R. It would be helpful to understanding the concept.

    • @gregmartin
      @gregmartin  2 года назад

      Thanks for the suggestion

  • @Pandora155
    @Pandora155 2 года назад +2

    Your videos are amazing!! Thank you so so so much

    • @gregmartin
      @gregmartin  2 года назад

      Thanks for the lovely feedback. Much appreciated.

  • @mohamedmarie2416
    @mohamedmarie2416 2 года назад +3

    Hard topic made easy. Thanks

  • @weston.weston
    @weston.weston 2 года назад +2

    This is a great explanation.

    • @gregmartin
      @gregmartin  2 года назад

      Thanks (much appreciated)

  • @georgie66549
    @georgie66549 2 года назад +1

    Hi Greg,
    Thank you so much for all your efforts in these videos, they're always so clearly explained! Do you have any videos or will you consider doing any on Regression Dilution Bias? I'm currently studying that in my Intermediate Epi module
    Thanks again!

  • @jamesleleji6984
    @jamesleleji6984 2 года назад +3

    Hi Greg. Can you do a tutorial on difference in differences using R where there is a test and control group to determine the impact of an intervention. Thanks

    • @gregmartin
      @gregmartin  2 года назад +1

      Will do.

    • @jamesleleji6984
      @jamesleleji6984 2 года назад +2

      @@gregmartin I'll be on the look out for this. Thanks for all the knowledge you are sharing about R programming.

    • @syhusada1130
      @syhusada1130 2 года назад +1

      Great idea.

  • @erandabandara9757
    @erandabandara9757 2 года назад +2

    Thanking you ..., sir

  • @nyalimakangila2705
    @nyalimakangila2705 Год назад

    You are a good teacher

  • @rehanicu
    @rehanicu 2 года назад +1

    Thanks for this presentation but I have a question if p values below 0.05 and average weight of sample falls in that proportion, does that mean this sample having sample mean 75 belong to population that doesn't have average weight of 65kg?

  • @ruhafza4719
    @ruhafza4719 2 года назад +2

    You rock as usual

    • @gregmartin
      @gregmartin  2 года назад

      That's kind of you to say :)

  • @olanmalde807
    @olanmalde807 2 года назад +2

    Well explained :)

  • @zulqarnainsatti8007
    @zulqarnainsatti8007 2 года назад +1

    Hi Sir, could you please add raster data( satellite) for analysis in your videos? please

  • @sakanablesakanable
    @sakanablesakanable Год назад

    Thank you so much Greg, can you please tell me what software you use for video editing?
    Thanks in advance

  • @mandelahyacinthe9453
    @mandelahyacinthe9453 2 года назад

    And why was nul hypothesis was rejected in this cases when it is clear avarage weight of men in Ireland is 65kg? (Which was the nul hypothesis)

  • @felixlucanus7922
    @felixlucanus7922 Год назад

    Nice video. May be also worth noting that an average value is not enough to construct a distribution such as the one drawn in the video. So the hypothesis would have to include more information than just the mean value to construct the distribution.

    • @gregmartin
      @gregmartin  Год назад

      Great point! Thanks for the feedback

  • @ismaelslaoui5100
    @ismaelslaoui5100 Год назад

    Awesome work Greg!!

    • @gregmartin
      @gregmartin  Год назад

      Glad you enjoyed it! Cheers!

  • @laaxmi1966
    @laaxmi1966 Год назад

    I paid money but no video bytes are getting

  • @jeremiahbaker6396
    @jeremiahbaker6396 Год назад

    THANK YOU

  • @ngocthutan3506
    @ngocthutan3506 2 года назад +1

    very helpful

    • @gregmartin
      @gregmartin  2 года назад

      Glad it helped! Thanks for the feedback.

  • @amylawsongill
    @amylawsongill 2 месяца назад

    I don’t understand the background music… why ruin a video

  • @mziegl11
    @mziegl11 Год назад

    Can you do a video on mirror writing? Thanks for this one too.

    • @gregmartin
      @gregmartin  Год назад

      Great suggestion! Thanks for the feedback!

  • @cciccone61
    @cciccone61 Год назад

    I’m 61 years old. I FINALLY get this.

    • @gregmartin
      @gregmartin  Год назад

      I'm so glad to hear that, Carlos. Thank you!

  • @alinawani2507
    @alinawani2507 7 месяцев назад

    Sir explain z test ttes z score

  • @merciadios5113
    @merciadios5113 2 года назад +1

    You are fucking awesome!!

  • @shaneoneil894
    @shaneoneil894 2 года назад

    Life saver

    • @gregmartin
      @gregmartin  2 года назад

      Glad it was helpful! Thank you :)

  • @Sergiuss555
    @Sergiuss555 Год назад

    Terrible explanation. You should probably use more precise language. The "sample falls into 2.5%" in what way?