"You can read it from the table" *shows actual table
@meems6382
6 жыл бұрын
I learned more in this 5 minute video than I did in a 2 1/2 hour lecture last week, THANK YOU!
@DrNic
6 жыл бұрын
I'm pleased to hear it. It might be that it helped consolidate the lecture material. Either way it is great to help.
@realdvgarg
4 жыл бұрын
@@DrNic humble.
@catherinej8819
3 жыл бұрын
WAS LITERALLY ABOUT TO COMMENT THIS lowkey kinda mad that I woke up for an 8am lecture and felt really lost and confused and then watched this video and now I understand like why am I
@alenjose3903
3 жыл бұрын
@@catherinej8819 im coming from khan academy, he's done a horrible job too.
@DrNic
3 жыл бұрын
@@alenjose3903 Thanks for that. Khan is not a statistics teacher and teaches like a maths tutor which is quite different. I really appreciate it when people can see the difference.
@兴宣大院君-h4s
8 жыл бұрын
This video is awesome. I recommend all of my professors to watch this before going to class!
@edenbirku5552
4 жыл бұрын
😂😂
@notanape5415
4 жыл бұрын
Damn bro!! Laughing so hard, I needed this :)
@nazifataha8868
4 жыл бұрын
Yes. Lmao
@AhmadKaako
9 жыл бұрын
Thanks a lot! Great statement for clarification at 4:19 about CI : "This is not the interval that will hold the weight of 95% of the apples in the orchard: It is the interval that we have 95% confidence will contain the true value of the population mean"
@henrybidar8065
8 жыл бұрын
This video saved my life
@tomwhitby5838
8 жыл бұрын
+Henry Bidar Never thought STATS is this fun, my lecturer makes it painful but this is delightful
@danspitalnik
8 жыл бұрын
So much clearer than my lecturer. Thanks.
@thesmiffable
10 ай бұрын
Honestly learned more about CIs in your two videos than an entire 4 year undergrad in biological sciences - It is taken for granted that you just know these things. Thanks for a well explained video.
@r4ts311
3 жыл бұрын
Thank you SO MUCH, i can finally understand the logic behind all the gibberish in my book!! Saved my life
@DrNic
3 жыл бұрын
That is great to hear - I believe yours is not the first life I have saved in this way. ;)
@dakshan
7 жыл бұрын
THANK YOU SO MUCH! Aced my stats quiz thanks to you!
@adamitinerant
9 жыл бұрын
Thank you for clarifying what hours of reading has made seem impenetrable.
@nihonarekun
7 жыл бұрын
Been watching many statistics videos now, this one has been the only one that's made me smile xD
@DrNic
10 жыл бұрын
This video teaches the more traditional way to calculate confidence intervals. It still concentrates on conceptual understanding rather than mathematical methods.
@Fastbub
6 жыл бұрын
Statistics Learning Centre always a pleasure learn from those who really know how to teach ☺️
@najla9180
6 жыл бұрын
Thank you so much , you are my hero
@swalihashanu5827
3 жыл бұрын
Does this have any similarity with 'exact confidence interval for mean based on t distribution '??
@DrNic
3 жыл бұрын
@@swalihashanu5827 This is not a term I am familiar with. It is a confidence interval for a mean based on a t distribution. Not sure what they mean by "exact"
@swalihashanu5827
3 жыл бұрын
@@DrNic oohh...I see..Thanks a lott Ma'am for the clarification
@DrINTJ
7 жыл бұрын
1000 times better than Khan Academy nonsense.
@TheMohit8055
5 жыл бұрын
khan academy video was pretty confusing you are right .. .
@hazimhuzaifah4359
5 жыл бұрын
exactly right
@MyteeBumbleBee
3 жыл бұрын
Quite right Mohammed! Sometimes Khan's instructors over explain and fail to stay on point with the subject matter. The result is that I walk away more frustrated and confused than I did before watching the video! Dr. Nic keeps it simple and plain; the way I like to learn!
@swaggyskye
3 жыл бұрын
true that!!
@harishsivaramakrishnan7096
3 жыл бұрын
Khan academy exists just because it needs to exists! No purpose tho.
@justinnottelling6148
6 жыл бұрын
This was well explained and easily understood video. I am doing an online course, and this helped me understand the material so much better. THANK YOU!!
@karunanidhimishra4222
6 жыл бұрын
This video has one of the best explanations for CI.. Awesome
@nazifataha8868
4 жыл бұрын
Why didn't I come across this before? I learnt so much and got the basic idea of CI. Thank you so much
@DrNic
4 жыл бұрын
Glad it was helpful!
@awaisahmad5908
Жыл бұрын
Thank you so much Dr. You are the best teacher. I have learned alot in your demonstration. Now i have cleared concepts about confidence interval and point estimator, standard error of mean and t value.
@DrNic
Жыл бұрын
Glad to hear that
@AndronikosKoutroumpelis
7 жыл бұрын
Aside from the excellent explanation, I love the humor!
@vladimir_rize
4 жыл бұрын
one of the best explanation ever!
@DrNic
4 жыл бұрын
Glad it was helpful!
@MyteeBumbleBee
3 жыл бұрын
Once again you knock it out of the park, Dr. Nic! You got me! I'm subscribing!
@DrNic
3 жыл бұрын
Welcome aboard! Maybe consider becoming a channel member! kzitem.info/rock/G32MfGLit1pcqCRXyy9cAgjoin
@SarahCrookall
4 жыл бұрын
Showing the actual table is incredibly helpful for us visual learners! Thank you!
@saichaithrik7134
4 жыл бұрын
it is more helpful than my last week 2 hours online lecture
@DrNic
4 жыл бұрын
Glad to hear that
@PharmaEducation1
3 жыл бұрын
Hi, Dr Nic, today I truly understood CI 95%. And I am 95% assured to have your channel subscribed is the only best option. :D
@DrNic
3 жыл бұрын
Excellent!
@harishsivaramakrishnan7096
3 жыл бұрын
You, ma’am, are a huge time saver !
@DrNic
3 жыл бұрын
Glad to hear it.
@harishsivaramakrishnan7096
3 жыл бұрын
@@DrNic If you can't explain it to a 6-year-old, you don't understand it yourself. Reminds me of this. Your videos have saved me some embarassment. lol.
@fernandou1704
4 жыл бұрын
Your videos are remarkably clear. Much better than many lecturers' I've had. Just a quick comment/question: my Harvard graduate Ph.D. in Epidemiology big head professor told me that I shouldn't make the assumption that "we are 95% confident that this interval contains the true value of the population" because this definition only applies when we are thinking of a hypothetical infinite number of samples (re-sampling/frequentist statistics approach) but never to any specific sample alone. Therefore, the explanation of minute 4:34 would be correct based on what he explained to me, but what you said a few seconds earlier (in minute 4:25) would be imprecise due to this technicality because we can only say this when we are considering broad re-sampling (but never for our single sample). Would you say that he might be correct when saying this? Thanks a lot. Your contribution to people you want to understand statistics is truly enormous with such clear videos!
@DrNic
4 жыл бұрын
For any specific sample, providing it is random and representative of the population in question, we can say that we are 95% confident that a 95% confidence interval will surround the population mean. The explanation of 4:34 is the statistical meaning of "95% confident". We do not take more than one sample in any instance, so this is the correct interpretation of a single confidence interval. There is always a tension between very very precise definitions and definitions that are useful and useable.
@PrashanthG
6 жыл бұрын
Helps in conceptual understanding. Really great. Thanks.
@andyzhang6305
3 жыл бұрын
You explained the formula in such a clear way, thank you for the hard work!
@DrNic
3 жыл бұрын
You're very welcome! Thank you for your support.
@hemant8592
4 жыл бұрын
nice presentation very helpful for quick recall
@rashaelkhateeb8391
3 жыл бұрын
Oh Thank you so much. I have spent a long time trying to understand my professor. Now I finally understand what he was trying to say but couldnt really communicate.
@DrNic
3 жыл бұрын
Glad it helped! You were probably nearly there and the video put it all together for you.
@fernandoarthurmesquitagome5066
8 жыл бұрын
I loved the video. Very elucidative and ludic...
@sashwattarenia258
5 жыл бұрын
terrific lecture...i always found this to be ridiculously confusing but thanx to you guys for clearing the concept..
@kyleburr8453
6 жыл бұрын
I wish you could make videos for all of my classes! You make everything so clear. Thank you.
@DrNic
6 жыл бұрын
I wish I could too! Any particular requests? ;)
@calvinlparks
4 жыл бұрын
Tank you for this intuitive explanation
@DrNic
4 жыл бұрын
You are most welcome. Good to hear you find it intuitive - I do aim to make it about ideas rather than procedures.
@greatvedas
Жыл бұрын
Concepts so clearly explained. Thanks Dr
@DrNic
Жыл бұрын
You are welcome
@taisaichan9568
Жыл бұрын
Thank thank thank you soooomuch Dr.Nic You really helped me
@DrNic
Жыл бұрын
That is good news. I like to help people
@johnstuart6002
7 жыл бұрын
These are really well done videos!
@saltator8565
2 жыл бұрын
Thanks for explaining the purpose of the formula's components! I struggle to understand math formulas. Oftentimes, it just looks like a bunch of letters thrown together for no reason.
@DrNic
2 жыл бұрын
Happy to help!
@sediye
10 жыл бұрын
this is great!, shocking , really. your voice and teaching ability makes it seem so simple. amazing!!!!!!
@anyijukamark8257
2 жыл бұрын
you have done it soo well mum, thank you
@DrNic
2 жыл бұрын
Thank you
@PP-io7qs
6 жыл бұрын
Brilliantly Done! Thank You!!
@studymapai
3 жыл бұрын
Not all heroes wear capes. Thanks a lot. I’m watching this 4 hrs to my exam and you may have just saved me. 😂
@DrNic
3 жыл бұрын
Glad I could help!
@cindyo6298
7 жыл бұрын
Wow, this is one of the clearest videos I've ever seen on KZitem, and it got right to the point. Excellent.
@kristenpearis2830
Ай бұрын
Literally the best video!!
@DrNic
24 күн бұрын
You are too kind
@SouravDas-eg8ok
4 жыл бұрын
great video. the idea goes into my head very easily which I hardly can forget :)
@DrNic
4 жыл бұрын
Perfect!
@ivelinamladenova7066
7 жыл бұрын
Very well explained! Thank you so much!
@linoykohen5923
5 жыл бұрын
Thank you very helpful almost at a 3rd grade level with your tone of voice and examples it makes it so much easier to understand
@girishlc
5 жыл бұрын
Thank you for the wonderful explanation.
@blobmarlis6180
8 жыл бұрын
Great accent. I was in New Zealand for the first six months of the year. I'm already missing it!
@inv8890
5 жыл бұрын
....I have no words to describe your effort. ma'am, I with you love and happiness.
@chvrleshd
4 жыл бұрын
Statistics will be easier to learn if they can calm down with these terminologies. The terminologies make things so complicated.
@DrNic
4 жыл бұрын
Yes the terminology can make it more difficult, but there isn't a lot we can do about that!
@falfalkao5104
7 жыл бұрын
Thank you for your useful video, but I have not clear understand the concept yet. I do not know what is "t" value and how we calculate it. Why do we choose 90%, 95%, and 99%. Could you help me to figure out the problems. Thank you again!
@DrNic
7 жыл бұрын
Hi - You do not calculate a t value, you read it from a table. However the computer generally does that for you. You choose the level of confidence depending on how confident you wish to be that the interval you get will contain the (unknown) population parameter. It is a trade-off, though, as the more confident you wish to be, the larger the interval gets.
@teamtigers7571
7 жыл бұрын
i hated epidemiology until i watched the vids. thank you
@tinahii7480
8 жыл бұрын
Thank you so much. You just saved me for my upcoming stats exam.
@avi_mukesh
3 жыл бұрын
Really good explanation! Thank you
@DrNic
3 жыл бұрын
You're very welcome!
@mohammedpatel3051
5 ай бұрын
Excellent tutorial 👍
@marcangelos5921
3 жыл бұрын
Thank you Dr. Nic :)
@DrNic
3 жыл бұрын
Most welcome!
@rockabc1135
7 жыл бұрын
Wonderful.. Thank u so much for creating such a beautiful content.. really appreciated... Thanks.
@dr.bhawnajoshi
2 жыл бұрын
Thank you so much for this video ✨
@DrNic
2 жыл бұрын
You're so welcome!
@LuisKing150
9 жыл бұрын
wow super super clear thanks so much
@vardhmaanjain3251
7 жыл бұрын
thanku so much
@CharlesBerg101
3 жыл бұрын
This is a great video, thank you. One thing I don't understand though is why the proportion of sample size to the original data isn't considered. E.g. All things being equal other than the population size, I would expect a calculation based on a sample of 200 people out of 400 to have a higher confidence than a calculation based on a sample of 200 people out of 10,000 people. This doesn't seem to be considered though, can you help me to understand why please?
@DrNic
3 жыл бұрын
In most of what we do, the population is big enough to ignore the sample size effect. There is such a thing as a finite population correction which should be applied if the sample is getting close to the size of the population. The issue is more that we do NOT sample with replacement, yet the formulas and theory assume that we do sample with replacement. Hope this helps.
@hiviamunugama
8 жыл бұрын
Thanks a lot. This actually helped. :D
@jokovik5492
2 жыл бұрын
I have watched this video at least 10 times in the last couple of years, and each time I learn something new! Great video!
@DrNic
2 жыл бұрын
That’s great to hear. Thanks
@sulaymaan3730
3 жыл бұрын
thank you very good explanation
@DrNic
3 жыл бұрын
Glad it was helpful!
@cade9491
8 жыл бұрын
Thank you so much, u saved my Biostatistics exam
@videoaks007
4 жыл бұрын
Explained it in so simple and understand able way. Thanks. I wish my teachers made maths so simple and interesting. Thank you very much DR Nic
@DrNic
4 жыл бұрын
Glad it was helpful!
@ayosiku2
4 жыл бұрын
You are a life saver. I hope you will continue to do this great work for years to come. i have been going through tons of tutorials and I find this refreshing. taking a data science course.
@DrNic
4 жыл бұрын
Great to hear!
@xalamukanibaloyi1500
8 жыл бұрын
thank u
@zoe2354
8 жыл бұрын
Oh my God, you're the best! I wish you were my prof! Stats would have been a ton more interesting.
@NguyenPhuong-oc7xu
9 жыл бұрын
Hi Mam, Thank for your clear video. I also have a question. Can you explain when we can use this formula, compared with the formula of (Average value)+/- 1.65*(Standard deviation)? Thanks in advance
@DrNic
9 жыл бұрын
Nguyen Phuong The formula you have given relates to a normal distribution and gives the middle 90% of the values in that distribution. The big difference is that you have used the standard deviation, rather than the standard error. When we use the standard error s/sqrt(n), we are finding the range of values within which we expect the population mean to lie. It is the distribution of sample means, not the distribution of the values. I suggest you watch Understanding Confidence Intervals, to get an idea of what the distribution is of.
@donibrasco1984
8 жыл бұрын
very nice presentations in all of your videos. No extra words , nothing to confuse. Definitely recommendable to others.
@anan7b66
7 жыл бұрын
Animations and especially those of the equations is just great. Helps a lot. Thank you.
@faisalkarim5250
5 жыл бұрын
Thanks a lot.
@fozangardezi6163
6 жыл бұрын
I do not know how much time it would had taken to understand without this video.
@salemmohamed968
5 жыл бұрын
Perfectly explained! Thank you so much...
@BloodBunn
8 жыл бұрын
Guys why don't we just skip hours-long college lectures and learn it all here in 5 minutes?I have community medicine exam on Saturday. Thanks for the help!
@Picknikly
10 жыл бұрын
this video is awesome! i made your drawings and schemes in my notebook, it seems so easy when you explain it. Just great!!!
@MmA-bo5du
4 жыл бұрын
Can you put a video on critical appraisal ? Aa a practical part
@DrNic
4 жыл бұрын
I'm not sure what you are asking.
@syednusrath9631
8 жыл бұрын
GREAT VIDEO. REALLY HELPS TO UNDERSTAND CONCEPTS BEHIND CONFIDENCE INTERVAL. THE ENTIRE TEAM OF Statistics Learning Centre IS TO BE CONGRATULATED. WISH TO CONTINUE THEIR ENDEAVOUR IN SIMPLIFING STATISTICAL METHODOLOGY
@majskakor11
Жыл бұрын
thank you!!
@DrNic
Жыл бұрын
You're welcome!
@imandialuthge
Жыл бұрын
3hr lecs x 3 days taught in 5mins 😄kudos!!!!👏
@DrNic
Жыл бұрын
Happy to be able to tie it together for you. I do remember being totally bewildered about statistics
@AndrewAhlfield
4 жыл бұрын
You mention at 4:18 that a CI is not the range that lets you describe the weights of 95% of the apples. Would that be a Prediction Interval?
@DrNic
4 жыл бұрын
Hi Andrew. That is a good question. In regression, yes that is a prediction interval. I've not heard the term under different circumstances - such as for a mean, but it makes sense.
@TheMohit8055
5 жыл бұрын
my lecturer is pretty bad and most of the time teaching himself …. this video was nice .. Thanks keep updating.
@zeedee6688
6 жыл бұрын
great job, really made it simple. Superb. Just a lit little bit curious at the like being placed against the comment trashing Khan academy. I agree that their explanation is not that great but overall the guy has done a great job. One academic should not enjoy the trashing of another. Just saying
@DrNic
6 жыл бұрын
Thanks. My concerns with Khan Academy are based around the procedural pedagogy and lack of vetting. Considering the funding that has gone into KA, there needs to be better quality control. I have written several blog posts about my concerns, including an open letter to Sal Khan. Many teachers share my concerns.
@DrNic
6 жыл бұрын
And you may have noticed that I try to like all the comments, as I appreciate any interaction. I also "liked" a comment saying I was almost as good as KA.
@zeedee6688
6 жыл бұрын
Statistics Learning Centre First disclaimer , I actually had to learn what pedagogy meant before replying :-). I agree that the explanation by Sal Khan is not up to the mark. And I may be mistaken but the comment by M. Shafei was the only one with the logo along with it. Anyway, my knowledge is zilch as compared to yours or Sals, and I benefit from both. Again, thanks for making It so simple. And taking the time to reply. Quick question, is Relative Risk applicable to control studies comparing a drug and a placebo? Thanks.
@blueninja7594
7 жыл бұрын
You are amazing. I've been struggling for so long to learn this thing and now thanks to you it seems like a piece of cake! Thank you so much.
@aishnaarora1336
3 жыл бұрын
Thanks!!
@DrNic
3 жыл бұрын
Welcome!
@hanbitlee1682
5 жыл бұрын
Fantasstic!
@bertayarkereta7847
4 жыл бұрын
thank you
@DrNic
4 жыл бұрын
You're welcome
@omeid1618
10 жыл бұрын
Super
@akshittuli1211
7 жыл бұрын
This is the best video about confidence intervals which I could find on KZitem !!
@lucinachavez4771
3 жыл бұрын
this is amazing, but the square root of 15 came up as 3.872 but sq root of 1.5 is 1.22, am I missing something?
@DrNic
3 жыл бұрын
It sounds as if you think the square root of 10n is 10 times the square root of n. The square root of 100n is 10 times the square root of n. The square root of 150 is 12.2.
@cajunninja8668
6 жыл бұрын
I know I’m late, but you are a Godsend mam. I might actually be able to pass my class because of you. Thank you so so so so much!
@NikPnchl7
7 жыл бұрын
very nice thanks...The part about what it is NOT is just as useful as to what it IS
@fpscppscofficialdoctor3061
4 жыл бұрын
Best lectures ❤️❤️❤️❤️❤️❤️❤️❤️
@samkab677
6 жыл бұрын
Why not Z instead of T ?
@DrNic
6 жыл бұрын
In order to use Z you need to know the population standard deviation or have a large sample. If you know the population standard deviation you wouldn't be finding a confidence interval as you would already know the mean. If you have a large sample, the t statistic becomes the Z statistics so you don't have to worry.
@abhip4538
6 жыл бұрын
If learning statistics is like mission impossible then you are tom cruise............... hats off
@DrNic
6 жыл бұрын
That has to be one of my favourite comments. Thank you.
@abhip4538
6 жыл бұрын
and u r my favorite teacher mam.......
@PraveenKumar-pd9sx
4 жыл бұрын
Hi mam, can you tell me how you get t value for appropriate confidence percentage values please
@DrNic
4 жыл бұрын
Hi Praveen. You look up the t-values in a table, or use a calculator or spreadsheet to look them up.
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