How To...Calculate the Confidence Interval for a Sample

Use Confidence Intervals to determine a best estimate of the range of a population mean based on the sample mean. A 95% Confidence Interval will be correct 95% of the time.

[@aidanmiller401]

Just learned a whole month of class in this video right here.
You really the man

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its 1 week worth for my summer class.

[@illianmckray6786]

My teacher who was trying to teach us this content had over an hours' worth of content that still failed to accurately explain how to do this, your video was so much more helpful, thank you!

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Don't underestimate that lecture, How many questions you can solve from 8 minutes of video as compared to 1hour long lecture?

[@yiijung]

Don't compare it just the way you focus.

[@toni-anngayle5909]

Thank you so so so so so very much. I have been struggling with this for almost 2 hours. You made it so simple, and your video is so concise, yet so impactful.

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I have been searching on how to solve this problem and you WERE able to break it down and i was able to follow without any problems. Thank you

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THANK YOU SO MUCH!!!!! YOU JUST HELPED ME PASS MY FINAL!!!

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Thank you. You manual calculation videos are really show the essence of statistics. I always use Minitab to analysis data, actually don't understand how to get the results. Your video helps a lot.

[@inna1929]

Thank you, Professor! You helped me out so much on this problem. Many thanks!

[@frndssuchi]

So much clarity and such a easy way to teach. Appreciate your teaching style so much. Thank you for these videos. Love and respect from India 🤗

[@michaelpappas3857]

Thank you Dr. O'Loughlin! Wonderfully clear explanation.

[@jessicasophiedouie2275]

This video explained this very clearly and made it so much easier. Thank you so much. You're an excellent teacher

[@Livia.S]

I had no clue on how to calculate this but after watching this video I can confidently say I will never fail this.

[@trevorpope1913]

Thank you, your videos are excellent, it makes so much difference when you work by hand and explain why and how.

[@Valerie-yt9zj]

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I can’t believe I finally understand this, thank you so much!

[@collins0052]

Thank you so much😭 I’m doing my assignment right now and couldn’t understand the teacher that was supposed to teach me this. Thank you for such clarity in how it’s done.

[@christineshavrnoch979]

You just explained it to me so that it “clicked” thank you for making this easy!!

[@hectorsosa7687]

This was soooo helpful! Thank you for posting it. I was so easy to follow

[@ernestol6325]

Thanks, professor! love the style and comes across easy to understand!

[@zeyadelhalaby5282]

thanks a lot I was struggling among many articles and stuff ..Bless you and healthy always

[@khushbusubba1144]

Your so cool, professor Eugene! love your teaching method, it's so easy to learn from you. Thank you so much. Respect.

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you're solid my guy

[@marynakshanovska344]

Thank you so much, professor!!!

[@mahiraamirova781]

Excellent, professionallly, absolutely clear. Thanks. Let Allah Bless you

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Your video was an excellent review - simple and succinct --- thank you!!!

[@mitch6151]

The teaching is so clear and great. Thank you!

[@arlenecampbell3877]

I thank you for making it so easy to understand.

[@ripbellx]

sir, you are a godsend. thank you so much for the informative but brief video!

[@Bob50520]

Beautiful and clean Eugene O'Loughlin. Wild how good that 6:58 min video was.

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One of the clearest explanation!

[@scotturbanski740]

This has been so confusing and you made it so easy. Thanks!

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Your videos are so very helpful Thank you very much again!

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YOU ARE AMAZING!!!!
thank you so so much

[@abby_plascencia7297]

Thanks for help! This video helped me so much more than my professor!! Keep up the great work Sir 😀

[@michaelrussi9209]

Thank you very much Professor Eugene!!

[@aditya4974]

Perfect explanation! Thank you so much

[@wong4728]

OK it is in, Teacher Extraordinaire. Thank you for this.

[@nthabisengnathalie1135]

This was very much helpful, thank you.❤️

[@TheWaites]

Amazingly explained - Thank you!

[@pillainag5378]

Fantastic teaching. Thank you

[@celinemary2914]

I've learnt about finding confidence level after watching your video.

[@sumitnaik164]

thank you. you explained it very simply...

[@frielruambil6275]

Thanks alot you just helped me to answer my assignment questions 👏

[@eleazararce5716]

Great video and came in right on time! Let me see if I can get the right answers now.

[@thilankavithanage1891]

That was very clear. Thank you.

[@nataliekay5566]

This video was so so helpful youre the best

[@gabrielareyesreid6737]

Genius! Thank you so much

[@benjaminblankers4645]

you explained it very clearly sir, thankyou!

[@kaylakai]

very useful, explained very well, thank you!!!!!

[@jst7675]

I watch this always if i forgot how to calculate lol ty dude btw

[@Societyofknowledge]

great video and easy to follow!

[@user-eh3ll6qr3h]

this video REALLY helped thx

[@mshoneydropShekoni]

You are the best professor

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you da goat

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great narration thank you

[@mohamid2k438]

thank you so much for the help friend

[@spxrits7581]

phenomenal

[@kellystratton-kretschmar69]

WHOA! Thank You!

[@MunirAhmad-sv7nd]

This is helpful . Thanks professor for this video . Comment is from Pakistan

[@stanley510]

this is the best work❤

[@stephenf368]

Thank you!

[@theearthling8178]

Thank you very much! Was very helpful.

[@bigseekersb]

I've seen other sources that state you can't estimate the mean with such a small sample size (n=14) unless you already know the original population data is normally distributed. That requirement was not mentioned anywhere in this video.

[@diminarchy]

Isnt the t distribution for that? Wouldnt it be a z value for n>30 (im genuinely confused so pls weigh in lol)

[@jabbedcrab]

@@diminarchy yes, that’s the exact reason why we use t-dist. We also don’t use T If we are given the population standard deviation.

[@zachhutchison5574]

your voice reminds me of the youtuber great scott, good video though very easy to follow

[@josphellihsilak4588]

So concise.

[@Baljindersingh-nb9jy]

Very clear explanation. Thanks

[@allthatmakeupALY]

Amazing!

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great video!!!

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Love you ❤

[@smr0018]

Very helpful, thank you so much.

[@Stephen10114]

Thank you Sir!

[@missrossiya]

watching stationary calculations is so satisfactory :)

[@Lauren-mq8nm]

I'll try this today

[@medhatrabie7391]

very useful video, thank you very much indeed

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you're doing god's work

[@johannachesshir8218]

Bless you

[@thinkingahead6750]

Thank you that was very clear. I am trying to understand what it means when someone says something like "that is one standard deviation out" when talking about outliers in a population. I heard it in relation to the distribution of IQ results and the challenges faced by people with an IQ at a certain (low) level?

[@rajbhushan3541]

great video sir

[@fxbbb]

Thanks man

[@johnralphbone8092]

Why'd you make it so easy, and why does my teacher make this so freakin hard

[@rebeccahood6055]

Thank you so much

[@Rawennnnn]

Really helpful! How to calculate confidence intervals of variance (n under 30)?

[@statuscrew4335]

Very helpful love from 🇵🇰

[@jarrelldunson]

Thank you

[@liteanawaidai]

Thank you so much Sir

[@anurajms]

ty

[@vinayakdoiphode7550]

Simple and best

[@GreenYoshi3881]

I feel like I am not learning much in my current statistics class. RUclips has become my new professor and the only way I am understanding it which is sad. 😢

[@aditya._.d3shmukh]

very helpful!

[@8octopus763]

You save me❤😭

[@vialeyrichards4244]

very good job sir

[@prasadjayanti]

Awesome

[@aimijutt8340]

thankyou soo much

[@thordarareach]

Very useful sir❤

[@sanjaisrao484]

Thanks

[@paulgrodkowski3412]

Interesting.

[@nadinemaarouf4996]

thank you. how do we know when to use the t table vs z score?

[@charlottegruber3573]

du ehrenmann.

[@grosssaft3700]

my teacher needs to make notes

[@prasoonmishra8361]

Its helpful