Hypothesis testing

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  • Опубліковано 28 лис 2024

КОМЕНТАРІ • 55

  • @gregmartin
    @gregmartin  Рік тому

    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 5 місяців тому

      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 11 місяців тому +2

    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 роки тому +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 :)

  • @IamGodSon
    @IamGodSon 2 роки тому +2

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

  • @simonaydevos1775
    @simonaydevos1775 2 роки тому +2

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

    • @gregmartin
      @gregmartin  2 роки тому

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

  • @haraldurkarlsson1147
    @haraldurkarlsson1147 2 роки тому +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 роки тому +2

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

  • @weston.weston
    @weston.weston 2 роки тому +2

    This is a great explanation.

  • @mohamedmarie2416
    @mohamedmarie2416 2 роки тому +3

    Hard topic made easy. Thanks

  • @joyferdinand
    @joyferdinand 2 роки тому +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 роки тому

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

  • @jamesleleji6984
    @jamesleleji6984 2 роки тому +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 роки тому +1

      Will do.

    • @jamesleleji6984
      @jamesleleji6984 2 роки тому +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 роки тому +1

      Great idea.

  • @jamesleleji6984
    @jamesleleji6984 2 роки тому +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.

  • @Pandora155
    @Pandora155 2 роки тому +2

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

    • @gregmartin
      @gregmartin  2 роки тому

      Thanks for the lovely feedback. Much appreciated.

  • @sakanablesakanable
    @sakanablesakanable Рік тому

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

  • @erandabandara9757
    @erandabandara9757 2 роки тому +2

    Thanking you ..., sir

  • @georgie66549
    @georgie66549 2 роки тому +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!

  • @rehanicu
    @rehanicu 2 роки тому +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?

  • @nyalimakangila2705
    @nyalimakangila2705 Рік тому

    You are a good teacher

  • @zulqarnainsatti8007
    @zulqarnainsatti8007 2 роки тому +1

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

  • @ismaelslaoui5100
    @ismaelslaoui5100 2 роки тому

    Awesome work Greg!!

    • @gregmartin
      @gregmartin  2 роки тому

      Glad you enjoyed it! Cheers!

  • @mandelahyacinthe9453
    @mandelahyacinthe9453 2 роки тому

    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)

  • @cciccone61
    @cciccone61 2 роки тому

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

    • @gregmartin
      @gregmartin  2 роки тому

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

  • @olanmalde807
    @olanmalde807 2 роки тому +2

    Well explained :)

  • @felixlucanus7922
    @felixlucanus7922 Рік тому

    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  Рік тому

      Great point! Thanks for the feedback

  • @laaxmi1966
    @laaxmi1966 Рік тому

    I paid money but no video bytes are getting

  • @ruhafza4719
    @ruhafza4719 2 роки тому +2

    You rock as usual

    • @gregmartin
      @gregmartin  2 роки тому

      That's kind of you to say :)

  • @mziegl11
    @mziegl11 2 роки тому

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

    • @gregmartin
      @gregmartin  2 роки тому

      Great suggestion! Thanks for the feedback!

  • @ngocthutan3506
    @ngocthutan3506 2 роки тому +1

    very helpful

    • @gregmartin
      @gregmartin  2 роки тому

      Glad it helped! Thanks for the feedback.

  • @jeremiahbaker6396
    @jeremiahbaker6396 Рік тому

    THANK YOU

  • @alinawani2507
    @alinawani2507 9 місяців тому

    Sir explain z test ttes z score

  • @amylawsongill
    @amylawsongill 5 місяців тому

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

  • @merciadios5113
    @merciadios5113 2 роки тому +1

    You are fucking awesome!!

  • @shaneoneil894
    @shaneoneil894 2 роки тому

    Life saver

    • @gregmartin
      @gregmartin  2 роки тому

      Glad it was helpful! Thank you :)

  • @Sergiuss555
    @Sergiuss555 Рік тому

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