Fairly underrated channel. Dr Nic makes so so complex topics fairly easy to understand!!! Arguably one of the best stats channel out there. Till now before this video, I couldn't very well define Confidence Interval but now I can with ease.
@DrNic
Жыл бұрын
That is wonderful to hear.
@gauthamambethkar4483
3 жыл бұрын
The best video for confidence interval in KZitem. Thank you so much.
@DrNic
3 жыл бұрын
Wow, thank you!
@fizzytothewizzymynizzy
3 жыл бұрын
Really insightful and to the point. Thank you for the very well structured content.
@DrNic
3 жыл бұрын
You're very welcome! I think hard about my videos so it's nice to be appreciated.
@jishanzaman3421
3 жыл бұрын
Recently it was my most important topic !!! Thankss!!
@DrNic
3 жыл бұрын
Glad it was helpful!
@BlakLotus
2 жыл бұрын
These explanations are SOO GOOD!!!!!!
@DrNic
2 жыл бұрын
Glad you like them!
@amandhakal8939
2 жыл бұрын
Excellent, Excellent, Excellent, Excellent
@DrNic
2 жыл бұрын
Many many thanks
@AlaaElhamrawy
2 жыл бұрын
Great explanation, Thank you Dr.Nic
@DrNic
2 жыл бұрын
You are welcome!
@zaffrihaqimi4059
8 ай бұрын
i appreciate this video a lot 🙏 thank you so much ❤
@DrNic
7 ай бұрын
You're so welcome!
@nilanjana1588
3 жыл бұрын
You did great Mam.
@DrNic
3 жыл бұрын
Thanks - it's a tricky concept.
@eesa6463
3 жыл бұрын
Excellent explanation madam. Keep it up you are doing excellent work.
@DrNic
3 жыл бұрын
Thanks a lot. I used to get questions about this quite a bit, so I thought a video would be useful.
@dr.ashuroulet7462
3 жыл бұрын
Thanks ❤️❤️❤️
@DrNic
3 жыл бұрын
You're welcome 😊
@eslamabdalmonem8457
2 жыл бұрын
many thanks Doctor
@DrNic
2 жыл бұрын
Any time
@brazilfootball
3 жыл бұрын
Why would we expect 95% of our C.I.'s from many different samples to contain the true population mean?
@DrNic
3 жыл бұрын
When we choose that level of confidence, then the Z or t value that we use in the formula ties in with the normal distribution so that we have that level of confidence.
@slemanbisharat6390
2 жыл бұрын
Thanks great explanation , regarding confedince level : how do you know if a specific confedince interval contains the population parameter , if we don't know it ( after all we don't know the value of the true parameter ) ?
@DrNic
2 жыл бұрын
We don't know if the specific confidence interval contains the population parameter, which is why they are confidence intervals. Sometimes we simulate a real life situation so that we can show what is happening with a known population, but in real life we do not know.
@slemanbisharat6390
2 жыл бұрын
@@DrNic yes thank you , indeed with simulations I get the same percentage of coverage
@hermanfs164
3 жыл бұрын
Very good! Thanks
@DrNic
3 жыл бұрын
Glad you liked it!
@navjothsingh6843
3 жыл бұрын
Hi Dr Nic, I'm confused about the "net theory". I believe that the narrower is the confidence interval, the more precise will be the values obtained from a sample, thus being generalizable to the population. The more is the confidence level, the higher is the chances to get a precise value, right? So, why wouldn't a higher confidence level cause the interval to be narrower as well, due to a narrower interval give rise to higher accuracy in relation to the population parameter. I find these concepts conflicting, do you mind clearing my doubt? Thank you :)
@DrNic
2 жыл бұрын
This is a very common confusion, which is why I use the example of a net. The narrower you make the confidence interval, the less likely it is to contain the true population parameter. It may be more precise but it is also less likely to be correct. Taken to extremes, if you wanted to be 100% confident to include the population parameter, you would make the interval (or net) very wide. Or if you make the interval very small around the sample statistic, it is very precise, but quite likely that it has missed the population parameter. Hope this helps - if not, ask again.
@navjothsingh6843
2 жыл бұрын
@@DrNic Ohh i see, I think now I got a better idea on how it works. Thanks Dr. Nic! 😄
@k.daniellenelson6664
3 жыл бұрын
Thank you
@DrNic
3 жыл бұрын
You are most welcome
@melesedesalegn2472
2 жыл бұрын
i like it
@DrNic
2 жыл бұрын
Glad to hear it
@leshowles749
2 жыл бұрын
Most of these videos go too fast. Seems to be teaching someone who already has some prior understanding of these concepts but doesn’t address the needs of beginners trying to understand them.
@DrNic
2 жыл бұрын
You are correct. You can always pause, slow them down or rewind if you need to.
@jaykylehd20
3 жыл бұрын
Confidence interval sucks
@DrNic
3 жыл бұрын
They seem really tricky to start with, but the more you use them, the clearer it becomes. Watch the whole playlist and you should get a clearer idea.
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