How To Find The Z Score, Confidence Interval, and Margin of Error for a Population Mean

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  • Опубліковано 16 лис 2024

КОМЕНТАРІ • 378

  • @TheOrganicChemistryTutor
    @TheOrganicChemistryTutor  Рік тому +23

    Final Exams and Video Playlists: www.video-tutor.net/
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  • @xeegurl
    @xeegurl 5 років тому +191

    You are truly a blessing. I watch your videos to study for my Physics, Chemistry and Statistics exams. The professors don’t teach us the way you do, plus I’m terrible in math. Now I’m good at calculations because of you. So I just wanna say thank you. May God bless and reward you.

  • @inhuman-specimen3820
    @inhuman-specimen3820 4 роки тому +17

    i've always found statistics to be the hardest section in math but i realised i just didn't understand bc it wasn't taught well to mean. i know my words won't increase your money but i want you to know that you're the best stats teacher i could ever ask for. sending you love, light and eternal peace

  • @looppool123
    @looppool123 5 років тому +391

    Not gonna lie, your voice is super soothing. You should do asmr for a side hustle, just sayin'.

  • @leokapoutsis9521
    @leokapoutsis9521 5 років тому +318

    I genuinely mean this: you have helped me so much! I have my final AP mathematics exam next week which basically determines school for me, and confidence intervals have been nerving me for a while. I truly do appreciate the hard work you put into these, I promise it doesn’t go unnoticed

    • @incognito6751
      @incognito6751 3 роки тому +3

      Did you pass?

    • @adnanoomaar5226
      @adnanoomaar5226 3 роки тому

      @@incognito6751 no reply is a pretty obvious answer tbf

    • @eliizabeth7557
      @eliizabeth7557 3 роки тому

      @@adnanoomaar5226 im confused, does no reply mean they passed, failed or died-

    • @adnanoomaar5226
      @adnanoomaar5226 3 роки тому

      @@eliizabeth7557 I’m guessing failed

    • @eliizabeth7557
      @eliizabeth7557 3 роки тому

      @@adnanoomaar5226 OoF-

  • @aa-017
    @aa-017 Рік тому +8

    life saver. i attend all my stats classes and try to open my mind as much as possible but would still feel confused after i get home. all profs should learn from you tbh

  • @dalisabe62
    @dalisabe62 9 місяців тому +1

    He knows so much and so could you if you pay attention and stay at it. Most people give up too quickly, and hence they never give themselves the opportunity for true learning experience.

  • @stephenugochukwu9472
    @stephenugochukwu9472 3 роки тому +90

    He just keeps making maths easy for us; respect, sir!!

  • @ritaallerding6802
    @ritaallerding6802 8 місяців тому +1

    You explain clearly and not too fast. No extra fluff or anything...just basic raw math ..NOW I understand

  • @garoldgilmore4054
    @garoldgilmore4054 4 роки тому +1105

    why do you know EVERYTHING

  • @AbdulDanmalan
    @AbdulDanmalan 2 роки тому +5

    I always finish your videos with a smile. My trick is watching them before studying and that takes 95% of the difficulty away.

  • @ShyanneN
    @ShyanneN 4 роки тому +137

    During quarantine you’re a life saver, thank you for making online learning easier

  • @aseruajanifer7687
    @aseruajanifer7687 8 місяців тому +3

    Master ,you are a destiny helper. God richly bless you🙏🙏

  • @_hymnix
    @_hymnix 5 років тому +71

    PLES MAKE A WHOLE STATS SERIES IM FAILING STATS AND U LITERALLY ARE THE ONLY UA-camR THAT HELPED LEGIT

  • @BigBroccoli_
    @BigBroccoli_ 2 роки тому +7

    I watched this video for my AP stat test and I came back a few months later to say thank you.. this taught me more than my teacher did.

  • @charleskariuki7013
    @charleskariuki7013 3 роки тому +27

    Thank you 🤗. Your platform helped me to learn statistics for the last two days. Something I have been struggling with the whole semester

  • @icstudiosng
    @icstudiosng 8 місяців тому +1

    Honestly I am just learning this and I understand it after your class . Truly remarkable very easy to understand the way u teach

  • @robertdzormeku1966
    @robertdzormeku1966 2 роки тому +3

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  • @brookesutherland8312
    @brookesutherland8312 3 роки тому +52

    i honestly like how he explains things more than khan academy

  • @kabbajatta6130
    @kabbajatta6130 3 роки тому +7

    First and foremost I really want to take this opportunity to say a big thank to you for helping me to understand so many things which I was finding difficult to understand in my studies,I am studying mathematics at the University of the Gambia am currently in my first year

  • @sophiemonement4146
    @sophiemonement4146 Місяць тому

    Thank you for basically getting me through my Masters in Biostatistics. You make more sense than the lecturers I pay good money for

  • @strifef7
    @strifef7 4 роки тому +6

    you have helped me pass advanced algebra and now stats. I appreciate your tutorials so much. next is calc

  • @priyeshtandel2101
    @priyeshtandel2101 9 місяців тому

    In 5 hours I have my exam and this video cleared my doubts, Thank you , It's very useful

  • @gabrielomblero281
    @gabrielomblero281 3 роки тому +10

    Currently at Grade 7 and I learned every aspect that I needed to learn from only this video of yours.. Thank you so much, and hopefully I will ace my test in 2 weeks.

  • @aa-017
    @aa-017 Рік тому

    stats became my worst nightmare i was slowly thinking of giving on it. in uni its so depressing and confusing. ill try to change my mind about it and learn from a great teacher like you. ik i wont be disappointed, i just need to have resilience to keep up and continue.

  • @madhavkawagucci8539
    @madhavkawagucci8539 3 роки тому +3

    Thanks for carrying me again in my 2nd year UG. Your videos has helped me from Grade 11 to First year of college and now Im back again on the day before my statistics exam.

  • @probablysam2744
    @probablysam2744 Рік тому +1

    You do a fantastic job not just explaining what things are and what to do, but also why they are and how it relates to other variables.

  • @gamerwaffleznbacon3259
    @gamerwaffleznbacon3259 2 роки тому

    they didn't teach this in my class and still stuck it in the test. Thank you for existing

  • @ericwuluglayjr8446
    @ericwuluglayjr8446 3 роки тому +1

    I don't even know how to thank you !❤❤❤❤🇨🇳🇱🇷🙏👑, since my secondary schools days till now , your "EASY- WAY" of explaining these concepts has been a great helped to me and many others , THANKS once again GREAT-MAN , may your days on planet earth be long 🙏🙏🙏🇨🇳
    (ZSTU university, here we go !)

  • @savindirupasinghe7989
    @savindirupasinghe7989 3 роки тому +5

    my ultimate savior for most of my college subjects :3

  • @MN-pg7et
    @MN-pg7et 9 місяців тому

    I have been watching your videos since my first year of high school and I am still watching them as a 4th year data science student haha. You are always the best guide.

  • @zarifhossain515
    @zarifhossain515 3 роки тому +6

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  • @reghardpieterse2010
    @reghardpieterse2010 Рік тому

    I thought that there was no way i could get 75% for my test next week but now I have so much confidence!!!

  • @richardgordon
    @richardgordon 5 місяців тому

    Thank you!!! You are a brilliant teacher. Just retaking stats (I've forgotten most of it) but you make the process so clear and simple. Most other tutors/teachers/professors make it so complicated and difficult to understand.

  • @Ahmed-fq6si
    @Ahmed-fq6si 3 роки тому +4

    I don't think I can thank you enough for your precious help
    May God bless you Sir

  • @kellylim2753
    @kellylim2753 4 роки тому +1

    You can be a professor! You are way better than my Math tutor that taught me in SUSS! You rock!

  • @LemanBeats
    @LemanBeats 8 місяців тому

    Thanks to your videos I passed my statistics exam. Thank you! :))

  • @brandonw409
    @brandonw409 4 роки тому +36

    How does this guy know so much?

  • @ericabucolericajanen.f.4426
    @ericabucolericajanen.f.4426 3 роки тому +1

    Super effective, the way you spoke every single words it's very clear... Thank you very much, I already knew how to solve it. I'm having a hard time to understand it lately but now it's clear... Thank you

  • @junysioco3554
    @junysioco3554 5 років тому +15

    I'm glad you have this lessons because it's hard to find them in youtube .. this is helpful for all students in the Philippines like my daughter she's in grade11..because it's a core subject though and I hope you make more lessons about this topic statistics and probability

  • @racheltham8002
    @racheltham8002 5 років тому +7

    Thank you so much! Your explanations and examples have helped me understand Stats much more in-depth, and have given me more confidence as well as develop more interest with Stats.

  • @loviniamak4194
    @loviniamak4194 3 роки тому +16

    You're brilliant. On z scores and statistics hands down 10/10. Khan Academy on the same topic, 2/10. I'm an adult undergraduate student doing econometrics without strong math background. I open my assignment and I have to find my way out of the dark. I don't think lecturers can do for us what you can. Where is your donation link.

  • @lizozweni6835
    @lizozweni6835 2 роки тому +4

    This man literally has our future in the palm of his hands

  • @vijayrb5519
    @vijayrb5519 2 роки тому

    dont know what to say, the best teacher as far as i have experienced, thx

  • @derickmweembela4248
    @derickmweembela4248 2 місяці тому

    🎉 watching before going to write a test in the morning 😀. God bless you ❤️

  • @Lovely-bh3ln
    @Lovely-bh3ln 9 місяців тому

    I might cry because of how much this video helped me, you are a god

  • @muhammadhamza9463
    @muhammadhamza9463 3 роки тому

    You are the best tutor I have ever listened to... I mean I wish you teach in my College

  • @sonwabilesangcozi2112
    @sonwabilesangcozi2112 2 роки тому +1

    Wow.. You make everything look easy Sir, Thank you. God bless you

  • @salmairaqi2287
    @salmairaqi2287 5 років тому +11

    wow you posted this exactly the week I needed it bless you omg

  • @wallacesamba4598
    @wallacesamba4598 2 роки тому

    You have no idea how much I benefit from your videos. Thanks a million

  • @GHOSTBAGZ
    @GHOSTBAGZ 3 місяці тому

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  • @mindoII
    @mindoII 3 роки тому

    at this point i'm learning more from u pls my prof is just discussing it messily and making the lesson harder so thank you !

  • @lexipalmer8865
    @lexipalmer8865 3 роки тому +1

    Bro you save my life time and time again

  • @GarrettPresley-k5p
    @GarrettPresley-k5p Рік тому +1

    This gotta be the smartest man alive.

  • @rinring9067
    @rinring9067 2 роки тому

    i don't know what i was going to do without you

  • @briankasia
    @briankasia 2 роки тому +1

    This is a better way to say that last part.
    "If we decrease the sample size n to 25, we increase the error bound. Increasing the sample size causes the error bound to decrease, making the confidence interval narrower. Decreasing the sample size causes the error bound to increase, making the confidence interval wider."
    -Open textbooks.

  • @thetechdev109
    @thetechdev109 3 роки тому

    Life saver since my first year in college. Kudos

  • @adugnadekeba
    @adugnadekeba Рік тому

    every thing with you is simple. thank you mr

  • @parmachine470
    @parmachine470 3 роки тому

    Thank God, TI Australia had me in a tailspin trying to determine Z and which distribution or it's inverse to use. This is the level we need to understand.

  • @trishlaphul1918
    @trishlaphul1918 4 роки тому +2

    looks like I struck gold with your video. Thank you !

  • @anacuellar769
    @anacuellar769 Рік тому

    Thank you very much for these videos. I have learned so much from your videos. Unfortunately, my statistics professor doesn't do a good job teaching us. You are a blessing!! 👋from Houston Tx.

  • @alineishimwe5738
    @alineishimwe5738 2 роки тому

    I express my gratitude. Your videos helps me a lot.

  • @keraicaptain1247
    @keraicaptain1247 2 роки тому

    thank you so much!! all your lessons are so easy to understand. May God bless u always.

  • @nayeraahmedbadawy9793
    @nayeraahmedbadawy9793 3 роки тому +1

    thank you so so much for this I took this chapter last week and really was so confused but this helped me so much

  • @Malandrin408
    @Malandrin408 Рік тому

    Thank You for your clear and simple explanation

  • @adugnadekeba
    @adugnadekeba Рік тому +1

    thank you MR.

  • @olly3887
    @olly3887 Рік тому

    thanks so much. after an hour i can finally find the z score value

  • @ramum4684
    @ramum4684 4 роки тому +2

    Awesome explanation.....
    Thankyou.... and brilliant work.
    Expect more on this way. Thank u again

  • @cathlynsantiago5528
    @cathlynsantiago5528 4 роки тому +1

    sIR I GENUINELY APPRECIATE YOUR CHANNEL, AN ACTUAL MODERN HERO

  • @JustinPulley-r3l
    @JustinPulley-r3l 11 місяців тому

    Highkey you need to be maid millions for how many grades you save. You got me through so many classes it's crazy.

  • @TranquilAssassin
    @TranquilAssassin 4 роки тому +3

    Thank you so much for making these videos. If you care to answer, how old are you? Because you just explained all these stats concepts way better than my middle aged stats professor who's been teaching for over 15 years. So keep it up you have such a gift for teaching.

  • @Michael_eagle99
    @Michael_eagle99 4 роки тому +2

    you actually help (you don’t know how you helped 👌 the clarity

  • @fatimadarling9656
    @fatimadarling9656 5 років тому +3

    I finally understood this topic. Thank you so much

  • @hahaha-fy9ky
    @hahaha-fy9ky Рік тому +2

    this > my 3 hours lecture

  • @nathananyimahmensah1104
    @nathananyimahmensah1104 2 роки тому

    Big brains. Kudos @ The organic chemistry tutor👏

  • @lmonable
    @lmonable 4 роки тому +1

    If it wasn’t for this guy. I would of been failing college stats 😭😭

  • @迪士尼在逃唐老鸭
    @迪士尼在逃唐老鸭 3 роки тому +1

    Lol I didn't even look at the book context and I've understood the concept by solving this problem , thx for sharing this great video

  • @georgegatambia5136
    @georgegatambia5136 10 місяців тому

    Thank you sir for making math easy.

  • @jeffrx
    @jeffrx Місяць тому

    Thanks for the video. I know it’s a bit old, but it helped me a lot!

  • @juststephanie.2779
    @juststephanie.2779 4 роки тому

    Thanks for making online learning easier for my online stats class! :)

  • @rhone8741
    @rhone8741 3 роки тому +2

    In the second example for calculating C.I , 0.95 is closer to 0.94950 than it is to 0.95053. In my opinion, the Z score is 1.64.

  • @ryanschade8764
    @ryanschade8764 Рік тому +1

    Bros better at teaching than my stats professor

  • @irakli1264
    @irakli1264 Рік тому

    Common misunderstandings about confidence intervals from wikipedia:
    1. A 95% confidence level does not mean that for a given realized interval there is a 95% probability that the population parameter lies within the interval (i.e., a 95% probability that the interval covers the population parameter). According to the strict frequentist interpretation, once an interval is calculated, this interval either covers the parameter value or it does not; it is no longer a matter of probability. The 95% probability relates to the reliability of the estimation procedure, not to a specific calculated interval.
    2. A 95% confidence level does not mean that 95% of the sample data lie within the confidence interval.
    3. A confidence interval is not a definitive range of plausible values for the sample parameter, though it is often heuristically taken as a range of plausible values.
    4. A particular confidence level of 95% calculated from an experiment does not mean that there is a 95% probability of a sample parameter from a repeat of the experiment falling within this interval.

  • @dbxonthebeat
    @dbxonthebeat Рік тому

    2023 and still this video is the best. Thanks!

  • @yeseniabaltazar8858
    @yeseniabaltazar8858 3 роки тому

    Bruh why he asked in the beginning to go ahead and try the problem if we know what we are doing. lol that's why I'm here cause I don't know what I'm doing. Love this man though, has helped me so much in my classes.

  • @npthuy6468
    @npthuy6468 Рік тому

    You deserve a big like

  • @Sajidur_Syam
    @Sajidur_Syam 2 роки тому +1

    A Huge Thank You Sir 👍

  • @wabbagajonathan20010
    @wabbagajonathan20010 2 роки тому

    God bless you sir.Thanks very much

  • @হাসতেমানা-ধ২শ

    Excellent explanation ❤

  • @yan5699
    @yan5699 Рік тому

    Your lectures are awesome!

  • @davidyoung797
    @davidyoung797 2 роки тому +1

    Wonderful tutorial as always.

  • @austinbaker7778
    @austinbaker7778 2 роки тому

    Chem tutor for president🤟🏻

  • @CondoleezzaBwanali
    @CondoleezzaBwanali 25 днів тому

    You're going to heaven for this

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    @SamsonShamitaba 6 місяців тому +1

    Why do we need Ai when there's this guy 🎉😮

  • @TamandaMasamba
    @TamandaMasamba 2 місяці тому

    You are a true gem 💎 man , appreciate it prof !!

  • @Makemoney0147
    @Makemoney0147 2 роки тому

    please share a financial analyst video and also preference share

  • @temitopefayeotanaoyaygommb7979

    you are a life saver. Thank you

  • @sethheng7528
    @sethheng7528 Рік тому

    Thank you for this channel!! You make it easy and fun

  • @julietdiah2204
    @julietdiah2204 Рік тому

    Great tutorial. I just want to thank you

  • @mcronncontentcreativitywor3833
    @mcronncontentcreativitywor3833 3 роки тому

    excellent. had to subscribe...you've made me understand confidence interval soo easily