Statistics 101: Visualizing Type I and Type II Error

Statistics 101: Visualizing Type I and Type II Error.
In this video, we attempt to make the concept of Type I and Type II errors more concrete by placing samples on distribution curves. We tie together the null and alternative hypotheses, sampling processes, and rejection/failure to reject the null hypotheses. Both two-tailed and one-tailed hypotheses are explained including the effects of alpha on Type I and Type II error. Rejection and nonrejection regions are also explored. This video prepares us for and hints at the next step: hypothesis testing. Enjoy!
My playlist table of contents, Video Companion Guide PDF documents, and file downloads can be found on my website: www.bcfoltz.com

Пікірлер: 183

  • @hardikadhir
    @hardikadhir8 жыл бұрын

    @16:21 do you mean (1-alpha)*100 should be in the nonrejection region?

  • @Live4Christ4ever100

    @Live4Christ4ever100

    7 жыл бұрын

    Hardika Dhir yes

  • @fahadfardan

    @fahadfardan

    7 жыл бұрын

    I think he was mistaken by this!! he could add comment on the video to inform others.

  • @BrandonFoltz

    @BrandonFoltz

    7 жыл бұрын

    I did misspeak at this part. Pinned the comment. Thanks everyone for pointing it out. Sorry! 😬

  • @akhtar1969

    @akhtar1969

    4 жыл бұрын

    Exactly, But "To Err" in teaching "Errors" is just human

  • @lauratan4392

    @lauratan4392

    3 жыл бұрын

    Thank you very much for leaving a comment on this

  • @Ha-ppi-ness
    @Ha-ppi-ness4 жыл бұрын

    OMG, I almost cry with the intro message: "If you're watching this video because you're struggling in a class right now I want you to stay positive and keep your head up. If you're watching this it means you've accomplished quite a bit already. You're very smart and talented and you may have just hit a temporary rough patch. I know with the right amount of hard work, practice, and patience you can get through it. I have faith in you. Many people around you have faith in you. So, so should you." 🙏🏽

  • @ANURAGSHARMA091716

    @ANURAGSHARMA091716

    3 жыл бұрын

    Yea, his words are very reassuring.

  • @pnorfy61
    @pnorfy6110 жыл бұрын

    If all students had a teacher like you the world would be a different place. Great job.

  • @wh33l6r
    @wh33l6r9 жыл бұрын

    OK. Here's a level of significance for you. Watching your tutorials are full of more "Ah, ha!" moments than any other stat lessons I've viewed. I guess I can feel 95% confident that, if I view more of them, the more I'll learn. I think that computes!

  • @BrandonFoltz

    @BrandonFoltz

    9 жыл бұрын

    James Franck Haha! Thanks James! My schooling was fool of those moments too with great teachers. Glad to be able to give back. :)

  • @bettinapierce4363
    @bettinapierce43639 жыл бұрын

    I really hate to say this because I know my teacher try really hard, but I have learned more for the first 13 minutes of your video that I have in 3 weeks of class! The step by step slow going information really helps! Thank you so much for posting this video!

  • @BrandonFoltz
    @BrandonFoltz11 жыл бұрын

    Hello! Thank you so much for your comment and for sharing these videos with your classmates. Of course your most valuable resource is each other. So my advice is to get together and talk about these ideas. It will really hit home then. Good luck to you all! Best, B.

  • @muratkol2935
    @muratkol29357 жыл бұрын

    While I'm preparing for my doctoral proficiency exam I have watched many different videos of great lecturers. All of them served me well. However you are the best that I've ever met on youtube to intensify my knowledge about statistics. Thank you very much! By the way, I'll have the exam at the end of this week :)

  • @ebjarrell
    @ebjarrell10 жыл бұрын

    Brandon. I am a first year, "mature", statistics student in Dublin, Ireland and have had way too much trouble getting my head around the subject; even after a tutorial. After watching your videos, I'm finding that I am understanding the subject a lot better. The only thing I wish you would do is have a hyper link on each video to proceed to the next/appropriate video that follows.

  • @rickiemarty1014
    @rickiemarty10146 жыл бұрын

    I am on the cusp of failing statistic and am a "A" student working on my Bachelors degree . Its a god sent I found your tutorials I can now see the light at a very scary dark tunnel🌷

  • @super-eth8478

    @super-eth8478

    4 ай бұрын

    cusp" psych word lol

  • @JessPeraza
    @JessPeraza8 жыл бұрын

    Hi! I'm a sophomore in high school and I just wanted to thank you for all you've done to help me! I always look to you when I have trouble understanding a certain concept in stats, I'm so happy I found you on here! I love your videos so much.

  • @matrixdinoguy6553
    @matrixdinoguy655310 жыл бұрын

    Couldn't agree with you more about the necessity of the right learning process in place. YOU have provided it. As so elequently stated by someone else below...you have my eternal gratitude! I have already shared your contact info with fellow students. I cannot believe how clear you make this so completely unclear material. Thank you!

  • @rakshitagrover1965
    @rakshitagrover19654 жыл бұрын

    this topic is so confusing that the moment i pause the video to write it down, i forget everything but thanks to your clear and simplified explanation that i have started to catch on the topic

  • @annenglish9171
    @annenglish917110 жыл бұрын

    Thank you for taking your own time to make these videos for those of us who need stats help. You make it easy to understand. You are GREATLY appreciated!

  • @laurisskraucis2247
    @laurisskraucis22476 жыл бұрын

    You are an amazing teacher, Brandon. I am forever grateful for your guides!

  • @nikhilverma6457
    @nikhilverma64576 жыл бұрын

    This video is the best on hypothesis errors. I struggled the whole day today but now learned it with outmost clarity. Thanks.

  • @Lumipzz
    @Lumipzz8 жыл бұрын

    Perfect video! I think many teachers, especially at research and not teaching institutions, struggle to present and breakdown the information to students like this. Not everyone has the time, resources, and skill to do so either. Thank you for doing this, very appreciative as a graduate student.

  • @Gigikelli
    @Gigikelli8 жыл бұрын

    I am only into this video in the first five minutes I already love it. Why? Because you start off with encouragement and a positive attitude. To me that is 80% of learning! So Thank you, I will be watching again and again!!!

  • @drnvz
    @drnvz10 жыл бұрын

    Brandon - you are my HERO!!!!! Thank you so SO MUCH. I am a lecturer too (Health and Social Care and Human Biology). Retraining and doing stats for my course and research. I have forgotten so much over the years, and have been so overwhelmed by it all. I love your teaching style and use of easy to relate to examples. You have made this information enjoyable and accessible. I am so grateful I found you on KZread - I shall be sharing your details with all my classmates. Thanks. Tasch.

  • @bebe1269
    @bebe126911 жыл бұрын

    Hello Brandon! I must say you are a god send and wish I had found your videos sooner. I appreciate the fact you do not go thru at lightening speeds like some videos. You take time to explain concepts. My instructor just gives us notes and he does not make sure his students understand the concept given. I appreciate the effort and time you take to make your videos. Thank you again

  • @jackquelyndelaney4776
    @jackquelyndelaney47769 жыл бұрын

    I am majoring in health care administration and this video was suggested by my instructor. I have a fear of math if it is not the basic adding & subtraction. In the beginning of the video I did not think that I would be able to follow, but as it turned out I was. Thank you for making it simple and I will be viewing more of your videos.

  • @beeable3855
    @beeable38558 жыл бұрын

    Great job. I love the encouragement in the beginning. I attend a Walden University doctoral program. You are helping me earn my degree. Thanks.

  • @BrandonFoltz

    @BrandonFoltz

    8 жыл бұрын

    +BEE Able Great! Glad you find the channel helpful. Please share if you think others may benefit. Hang in there!

  • @nihalnassar1161
    @nihalnassar116110 жыл бұрын

    u better than any text book,best way presentation is laid out to understand to any lay man

  • @harshadrathod8782
    @harshadrathod87827 жыл бұрын

    This kind of flawless explanation comes only when you love to do..Thank you for spending time to provide great learning..appreciated

  • @dawn123ish
    @dawn123ish4 жыл бұрын

    You have done it again. You explain concepts so well. I checked Amazon, and didn’t see any books that you’ve written. I would have purchased it right then.

  • @jessamhan
    @jessamhan11 жыл бұрын

    I can't begin to tell you how much your videos on hypothesis formulation/testing and type I and II errors have helped me in understanding and reviewing concepts that I haven't had any encounters with for 20-25 years. My job has recently changed to include a number of statistical technics on a need-to-be-able-to-explain basis. I hope your future release schedule will include ANOVA and multiple regression. :-) Thank you very much for the effort and time you have put into making the videos.

  • @ajitkhanal507
    @ajitkhanal5073 жыл бұрын

    I get amazed by the amount of effort you put into your videos. And this forces me to increase my usual effort of learning because I have to make notes.

  • @Victoria_2005
    @Victoria_200510 жыл бұрын

    Thank you so much! I learn pictorially, so this was invaluable :) You have my eternal gratitude!

  • @paceline
    @paceline2 жыл бұрын

    Your positive encouragement at the very beginning earned you a Like, sir. Thank you.

  • @felixpayne2612
    @felixpayne26129 жыл бұрын

    Brandon, I think you are one of the best teachers out there. Your work is stunningly awesome. Because of you I understand type 1 and type 11 errors. Thank you, thank you, thank you!!!

  • @BrandonFoltz

    @BrandonFoltz

    9 жыл бұрын

    Felix payne Thank you Felix! I have been blessed with amazing teachers who taught me how to learn and to love to learn. Trying to pass it on. Glad you find the videos helpful. Keep on learning my friend! Best, B.

  • @Quijanos1
    @Quijanos13 жыл бұрын

    This video was superlative in visual content, explanation, and number of examples. It should be mandatory for all students initiating Hypothesis testing. Great job and thank you.

  • @jennifersearle911
    @jennifersearle9119 жыл бұрын

    Professor Foltz, Thank you so much for these videos!! You have saved me from a serious mental breakdown. I love your approach of teaching! I am a non-traditional student who went back to school 7 years ago and I am now in a graduate program. I am serious and sincere when I say you are amazing!! Please keep it going! Thank You ;0)

  • @BABYBULLONE
    @BABYBULLONE10 жыл бұрын

    Thank you for your videos. I'm an AP Statistics teacher and I think my students will really benefit from using your videos as a reference. Thanks!

  • @doll326
    @doll326 Жыл бұрын

    Thank you so much for making this video!! The moderate pace and especially the visualisation make everything crystal clear !

  • @BrandonFoltz
    @BrandonFoltz11 жыл бұрын

    @jessamhan First thank you for your comment, but really people like yourself are my true inspiration. The fact that you are jumping into your new job with both feet and committing yourself to learning and improving after a time away from stats is a lesson for us all. I will be getting to variance in the next week or two and regression after that. Hang in there and give yourself a large pat on the back. All the best, B.

  • @tracycook5776
    @tracycook57767 жыл бұрын

    Thank you so much for these videos, and especially the pep talk at the beginning. This is a great help for me with my quantitative methods course!

  • @leahhall7504
    @leahhall7504 Жыл бұрын

    I just wish I watched this video sooner. Very grateful for this content!!

  • @lyndamccroskey1884
    @lyndamccroskey18843 жыл бұрын

    Thank you! I will suggest this to my university students! Very clear! I appreciate that you do not over-intellectualize concepts/topic. best--LLM

  • @ericknutson8856
    @ericknutson88563 жыл бұрын

    Hi Brandon- Thanks for all your great videos. I'm moving into Data Science and your statistics videos have made things simple and enjoyable. I'm a subscriber now and wish you all the best.

  • @sheguftat4372
    @sheguftat43726 жыл бұрын

    Thank you SO much! I finally got it after daaays of stressing over it. Two thumbs up!

  • @AndrewMcNeillMusic
    @AndrewMcNeillMusic5 жыл бұрын

    absolutely brilliant - please keep on doing these videos - really informative, clear, helpful. Thank you!

  • @sarat4chan
    @sarat4chan9 жыл бұрын

    Brandon, It's really nice of you, and stupendous teaching. It's great to find a teacher like you.... Thank you so much...

  • @BrandonFoltz
    @BrandonFoltz10 жыл бұрын

    Thank you so much! But you and your students are the true heroes committed to teaching and learning. Hang in there your students are very lucky! - B

  • @deci0056
    @deci00568 жыл бұрын

    I have tears of joy! I finally get it. Thank you so much this video made the concept understandable. Keep up the great teaching. I am telling my classmates about your site.

  • @haningtonhillary6729
    @haningtonhillary67297 жыл бұрын

    very good instructor makes you undersand hypothesis testing

  • @nawwafalmutairi3574
    @nawwafalmutairi35747 жыл бұрын

    I love this channel, the best !! Thanks Brandon Foltz !!

  • @maajin3410
    @maajin34105 жыл бұрын

    Thanks a lot ! this video helped me clear my misconceptions that I had. Now i am able to relate to central limit theorem and its importance.

  • @quetzalamaru
    @quetzalamaru10 жыл бұрын

    Thank you, kind Sir.

  • @areejalfattani3237
    @areejalfattani323710 жыл бұрын

    Thank you ,, Great presentation,

  • @camillastrm3316
    @camillastrm331610 жыл бұрын

    Thank you! I love your fine tutorials! I'm a danish M.D now doing a ph.d. and have been struggling as in STRUGGLING with the statistics, because I find much of the literature very confusing/difficult to read, but after watching this I find it so very easy to understand! Good job! Will share it with my friends ASAP.

  • @BrandonFoltz

    @BrandonFoltz

    10 жыл бұрын

    Oh thank you Camilla! Hang in there you can do it! I am glad you find the videos helpful. And thank you for sharing. All the best, B.

  • @pranavbhat7254
    @pranavbhat72545 жыл бұрын

    When one defines type I and II errors in a sentence it is hard to understand. Visual representation makes it absolutely easy to understand. Fantastic explanation. Fantastic video. I now understand type I and II errors with 99.9999% confidence. So alpha=0.000001 :-). Why cant we say accept null hypothesis instead of fail to reject null hypothesis?

  • @elishavirani9873
    @elishavirani98738 жыл бұрын

    Thank you so so much sir, u really make it so easy to understand! I love this thing about you, that you spend 1st 2 min in encouraging us:) it really gives a positive framework to go ahead and listen to ur full video.. and u have simplified it so well..!! just wanna say.. thank u!

  • @leahrichardson9774
    @leahrichardson977410 жыл бұрын

    I am writing my stats exam on Monday and I am going through all your videos, this is going to save my grade and get me a distinction. It is amazing to have such information readily available online! Thank-you so much, and please continue making videos.

  • @annemono

    @annemono

    10 жыл бұрын

    how did your exam go?

  • @leahrichardson9774

    @leahrichardson9774

    10 жыл бұрын

    It went alright, the lecturer I have ask some pretty tough questions, but all in all I think I did good, the videos were a huge help, I had no idea what I was doing until I came here.

  • @coolmoe101
    @coolmoe10110 жыл бұрын

    This series is great! I really appreciate everything you present. The one thing that would it better is giving the videos numbers. I am not sure which video comes after this one.

  • @wisamsalo7286
    @wisamsalo72866 жыл бұрын

    that is my first time to understand statistics, thanks Brandon

  • @Enya795
    @Enya79511 жыл бұрын

    Wow! excellent job on the video. Thank you very much. I will be showing this video with some of my classmates. Thanks again!!!

  • @BrandonFoltz
    @BrandonFoltz11 жыл бұрын

    Hello! Factor analysis, cluster analysis, and PCA are something I plan on doing a video on at a later time. Those are well beyond intro stats. Just remember that a factor is merely a linear combination of several individual variables into a composite variable. (A weighted summary score of several variables.) Factor loading is just the correlation between each composite factor and each individual variable.

  • @Fab_TV
    @Fab_TV8 жыл бұрын

    Outstanding job. I really appreciate the time you took to put this together. I look forward to your other videos to aid in my studies.

  • @AshrafulAlam-
    @AshrafulAlam-3 жыл бұрын

    Sir, I wish I could thank you over phone 😊 I was very much frustrated with this tropic. But now, it’s like water to me 😌 May God Bless YOU

  • @abinashsahoo969
    @abinashsahoo9699 жыл бұрын

    Excellent explanation in a very simple easy to understand way.. Thank you

  • @adrianbarragan4282
    @adrianbarragan42829 жыл бұрын

    Excellent video Dr. Foltz, really easy-understanding manner to explain this complicated subject. Your videos have been really useful to help me better comprehend statistics. Thanks.

  • @BrandonFoltz
    @BrandonFoltz10 жыл бұрын

    Hey Moe! Thanks! All my videos are organized on my channel page by topic and sequence. Just view by playlist. - B

  • @niroz9999
    @niroz99999 жыл бұрын

    Mr. Brandon, Thanks alot. More than perfect. specially the point of the relation between alfa and beta errors.

  • @aryanshrestha6630
    @aryanshrestha66307 ай бұрын

    YOU TEACH SO WELL!!! THANK YOU

  • @kimberlybyng1731
    @kimberlybyng17318 жыл бұрын

    Thank you - I am finally beginning to understand

  • @sabarishsekar
    @sabarishsekar10 жыл бұрын

    thanks Brandon for the amazing videos !!

  • @ylazerson
    @ylazerson6 жыл бұрын

    This video was pure gold!

  • @prabhudaskamath1353
    @prabhudaskamath13534 жыл бұрын

    Great lecture, thanks Brandon..

  • @shemroon
    @shemroon11 жыл бұрын

    Excellent tutoring, thanks a lot!!!!!

  • @ShreyasSinha
    @ShreyasSinha3 жыл бұрын

    Amazing video. Watching it in 2020.

  • @ManojSingh-oo8rz
    @ManojSingh-oo8rz5 жыл бұрын

    Great teaching!!!! Kudos to you!!!

  • @cola175
    @cola17510 жыл бұрын

    First od all, thank you very much for your goodness for shareing your knowlage. Your classes are so good and easy to understand. And, i may mistake, but in the video there is part sayin that (alfa*100)% if fancy way of saying 95%, but alfa is 0.05...maybe you mean ((1-alfa)*100)% is 95% ? All the best Brandon, you are so good teacher, and keep doing it! Greeting from Bosnia and Herzegovina!

  • @eunjookang0417
    @eunjookang04177 жыл бұрын

    You are the best of best !!

  • @muhammedyusufsener1622
    @muhammedyusufsener16225 жыл бұрын

    Awesome, many thanks sir!

  • @nevilshan6351
    @nevilshan63519 жыл бұрын

    Fantastic and superb explanation

  • @lpalanisamy
    @lpalanisamy10 жыл бұрын

    I totally agree with Callahan. The playlists are a big help.

  • @BrandonFoltz

    @BrandonFoltz

    10 жыл бұрын

    Hi Logan! If you go to my channel and sort the videos by playlist they are already sorted by topic and sequence.Can you see those?

  • @purukarna
    @purukarna10 жыл бұрын

    Good explanation indeed!

  • @melindabon2901
    @melindabon29019 жыл бұрын

    Thank you! I am very grateful.

  • @sudipkumar7537
    @sudipkumar75377 жыл бұрын

    I am enjoying your videos . Actually its better than a text book to be followed . I appreciate your effort .

  • @BrandonFoltz

    @BrandonFoltz

    7 жыл бұрын

    I appreciate your viewership. Thank you for watching and learning!

  • @Santoshsusarla
    @Santoshsusarla3 жыл бұрын

    your work is awesome !

  • @roswitaparreno3417
    @roswitaparreno34176 жыл бұрын

    just great...a big help...thank you...

  • @OlmaLin
    @OlmaLin10 жыл бұрын

    You help me survive my horrible statistic teacher!! Thank you so much!!!!

  • @AJ-et3vf
    @AJ-et3vf2 жыл бұрын

    Awesome video! Thank you!

  • @GahanaThiyaga
    @GahanaThiyaga10 жыл бұрын

    Great Lessons Brandon

  • @adelidechitsike9886
    @adelidechitsike98864 жыл бұрын

    I really appreciate you Sir.

  • @IAmTheRedHeadedDiva
    @IAmTheRedHeadedDiva9 жыл бұрын

    Hi Brandon, Thank you for this very easy to understand video! You have a gift with teaching. I am currently studying in a doctoral program at Johns Hopkins and have struggled with statistics. Your videos are amazing! Thank you for being an awesome person - I will be connecting with you on LinkedIn!

  • @BrandonFoltz

    @BrandonFoltz

    9 жыл бұрын

    Kelly Galanis Thanks so much! Glad you find the channel helpful. And yes thank you for the invitation on LinkedIn. Good luck in your doctoral work. If I can ever be of help please let me know. Best, B.

  • @robschwartz9255
    @robschwartz92554 жыл бұрын

    Love the Series! Are there any problem sets to go with this series? Always 'locks it in' to work problems after reviewing the academic material....Thanks for the truly GREAT job and amazing effort putting all this together!

  • @steven_seagan_fan6185
    @steven_seagan_fan618510 жыл бұрын

    These videos are amazing!!! Thanks a lot and keep up the good work!!!...I recommended your videos to my friends here in Brazil.

  • @BrandonFoltz

    @BrandonFoltz

    10 жыл бұрын

    Thanks Arthur! Greetings from Cincinnati, Ohio. I hope to visit there someday before I go sliding sideways into the grave on fire. And thanks for sharing. The best thing to share with your friends, is YOU so you can learn from each other. All the very best, B.

  • @RichardShockey
    @RichardShockey8 жыл бұрын

    So, so helpful. Thank you.

  • @kianbehdad
    @kianbehdad9 жыл бұрын

    Really nice job Brandon, please keep up the good work

  • @HemantSingh-gz3kx
    @HemantSingh-gz3kx7 жыл бұрын

    Very good and well articulated video brandon !!

  • @aryasnair3983
    @aryasnair39836 жыл бұрын

    well explained the concepts. easy to understand.

  • @sumitparanjape2758
    @sumitparanjape27586 жыл бұрын

    Thank you, its really helpful.

  • @deepakdodeja4663
    @deepakdodeja46633 жыл бұрын

    You could have monetised your hypothesis testing playlist. Great Effort. 100+ Likes.

  • @shernaye3695
    @shernaye36956 жыл бұрын

    Thanks so much! Awesome work

  • @joshuandulinga732
    @joshuandulinga7322 жыл бұрын

    Well explained!

  • @RobynLynn07
    @RobynLynn079 жыл бұрын

    Truly amazing! Many thanks!!

  • @ohprince563

    @ohprince563

    5 жыл бұрын

    RobynLynn

  • @saraj233
    @saraj2338 жыл бұрын

    Thank you very much!

  • @gauravadlakha779
    @gauravadlakha7795 жыл бұрын

    you are the best man!!!!

  • @fariborz121
    @fariborz1219 жыл бұрын

    U are a great man.

  • @guidedmisselsn1not
    @guidedmisselsn1not5 жыл бұрын

    I really appreciate your videos! You are a gifted teacher, thanks for sharing your knowledge. :)

  • @guidedmisselsn1not

    @guidedmisselsn1not

    5 жыл бұрын

    I have an oral exam tomorrow for my masters in clinical research. Your videos help me understand on how to verbalise concepts. lets see if I pass, :)