Hypothesis testing

[@gregmartin]

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]

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]

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

[@IamGodSon]

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

[@gregmartin]

You’re welcome!

[@cyg7655]

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 :)

[@simonaydevos1775]

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

[@gregmartin]

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

[@mohamedmarie2416]

Hard topic made easy. Thanks

[@gregmartin]

You’re welcome!

[@haraldurkarlsson1147]

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]

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

[@joyferdinand]

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]

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

[@weston.weston]

This is a great explanation.

[@gregmartin]

Thanks (much appreciated)

[@Pandora155]

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

[@gregmartin]

Thanks for the lovely feedback. Much appreciated.

[@jamesleleji6984]

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]

Thanks for the suggestion

[@nyalimakangila2705]

You are a good teacher

[@gregmartin]

Wow thank you

[@erandabandara9757]

Thanking you ..., sir

[@georgie66549]

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!

[@ruhafza4719]

You rock as usual

[@gregmartin]

That's kind of you to say :)

[@ismaelslaoui5100]

Awesome work Greg!!

[@gregmartin]

Glad you enjoyed it! Cheers!

[@jamesleleji6984]

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]

Will do.

[@jamesleleji6984]

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

[@syhusada1130]

Great idea.

[@olanmalde807]

Well explained :)

[@gregmartin]

Glad it was helpful!

[@rehanicu]

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?

[@sakanablesakanable]

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

[@felixlucanus7922]

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]

Great point! Thanks for the feedback

[@zulqarnainsatti8007]

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

[@jeremiahbaker6396]

THANK YOU

[@ngocthutan3506]

very helpful

[@gregmartin]

Glad it helped! Thanks for the feedback.

[@mandelahyacinthe9453]

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]

I’m 61 years old. I FINALLY get this.

[@gregmartin]

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

[@mziegl11]

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

[@gregmartin]

Great suggestion! Thanks for the feedback!

[@laaxmi1966]

I paid money but no video bytes are getting

[@amylawsongill]

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

[@merciadios5113]

You are fucking awesome!!

[@gregmartin]

Thank you!

[@alinawani2507]

Sir explain z test ttes z score

[@shaneoneil894]

Life saver

[@gregmartin]

Glad it was helpful! Thank you :)

[@Sergiuss555]

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