Standard Error of the Mean

This statistics video tutorial provides a basic introduction into how to calculate the standard error of the mean from the sample standard deviation as well as the population standard deviation.
Introduction to Statistics: • Introduction to Statis...
Statistics - Video Lessons:
www.video-tuto...
____________________________________
Introduction to Probability:
• Introduction to Probab...
Central Limit Theorem:
• Central Limit Theorem ...
Standard Error of The Mean:
• Standard Error of the ...
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Confidence Intervals & Margin of Error:
• How To Find The Z Scor...
Find The Z-Score Given Confidence Interval:
• How To Find The Z Scor...
How To Calculate The Sample Size:
• How To Calculate The S...
Student's T-Distribution:
• Student's T Distributi...
Confidence Interval-Population Proportion:
• Finding The Confidence...
Chebyshev's Theorem:
• Chebyshev's Theorem
_____________________________________
Hypothesis Testing - Null & Alternative:
• Hypothesis Testing - N...
Type I and Type II Errors:
• How To Identify Type I...
One Tailed and Two Tailed Tests:
• One Tailed and Two Tai...
Test Static For Means & Pop Proportions:
• Test Statistic For Mea...
Hypothesis Testing Problems:
• Hypothesis Testing Pro...
____________________________________
Final Exams and Video Playlists:
www.video-tuto...
Full-Length Videos and Worksheets:
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[@TheOrganicChemistryTutor]

Statistics - Video Lessons: www.video-tutor.net/statistic.html

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[@d2xr]

I think it should be expected, if he dedicated his life to math and didn’t know math in detail…

[@prathmeshbankar8059]

Its basic not in deep core in the subject

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@@prathmeshbankar8059 welll, true but he explain everything quite well

[@maanavpatel]

@@d2xrread the question again

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[@ouranos6925]

I don't actually have anything to comment, I just appreciate how well you explain things in your videos, and I've heard that commenting on videos helps

[@JamesJon1187]

If anyone else was super confused about "n-1", apparently, it's called "bessel's corrections" and it's the due to the difference between a full population's standard deviation and a sample of the population. If it's the full population you use "n" and if it's a sample, you use "n-1".

[@thatguyinthathat.s6969]

I think you might’ve solved this problem… that’s been swimming 🏊‍♂️ in head for the past 4 hours.

[@shilashm5691]

It is also known as degree of freedom

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[@Harry-mb4cs]

I can't believe how easy this was and here I was so scared to learn it. Literally learnt Stan dev and error in 10 minutes Thank You!

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[@gauridubey1699]

Just loved it , I was trying so hard to learn this but you made it so simple for me.Thank you so much.

[@thatoangelobuseng8804]

Thanks a lot 🙏 i been struggling with this for a while now

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Excellent explanation. I appreciate your teaching skills

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[@ruoranwang8200]

I really like your video. Thank you for making this.

[@Farhan4mbandhi]

This is a great help, thanks for your videos

[@ledung9672]

thank you for your dedication

[@mokotb4409]

In the second example, the 9th minute exactly, you said the relation is that when you increase the "n" by a certain factor, the standard deviation of the sample decrease by the half of this factor. Actually the standard deviation decreases by the square root of this factor not the half, as if you try any number rather than 4 it will explain my words.
Thanks

[@hershyfishman2929]

That's not what he said. He said (8:39) if you multiply n by 4, the SE will decrease by 1/2, meaning half of its original value, not half of 4.

[@chertify]

Thank you for explaining this so well!

[@richardkale6751]

Please help with this question: A survey of 500 adults showed that 240 of them drank alcohol daily. Calculate
standard error for the adult population that drink alcohol daily and also
construct the 95% confidence level.

[@wrjazziel]

Thank you as usual!

[@ZoeyLu]

Well explained ! Thank you

[@ramlanzaderas]

Hello Can I ask Why did you come up with 3.114 I can't Get it in my Equation

[@meganquarshie1278]

Yeah I was looking for this comment I’m glad it’s not just me 🥲

[@pysgodyn23]

i got 3.6
@@meganquarshie1278

[@kezienation7135]

Like am getting 1.95 as the standard deviation

[@marianbundel1229]

THANKS MY MAN!

[@dimitriysevryukov1629]

Thank you very much !

[@usarmygunz]

Well done!

[@shansong221]

Every time I need to know “why” and u tell me “why” 😂

[@veerakanneboina8086]

1) I was given with 4 values, which are considered population. Then I have made possible samples of size 2, I got total 6 samples.
Now I calculated mean of these 6 samples(m1, m2, m3, m4, m5, n5).
Now I was asked to find the sample error of the means how to calculate it. Can you explain it clearly
2)And are there both population standard error and sample standard error
3)And i can't get where to use sample standard deviation and population standard deviation.

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His name is Julio Gonzales

[@aracupcupin2473]

How did you get the 3.114? I don't know how to put the sum of variance in the calculator to get the 3.114

[@Usually-x3t]

Because he divided in to 4 instead of 5. Big mistake

[@alexgoldberg5599]

Isn’t it that when you have something with a negative in parenthesis and square root it, it is always positive. For example (-0.8)^2 would be 0.64, but -0.8^2 would be -0.64. In they first problem the answer was as if the numbers didn’t have parenthesis around them. I’m the proper equation should you put parenthesis around the numbers when squaring them of not?

[@cocomegalodon902]

how you get 3.114? i calculate all that i have but the answer is wrong?

[@cocomegalodon902]

what solution are you doing?

[@poonambajaj17]

You just told about calculations but what outcome interprets.

[@johnmv5408]

Sir can u make a video tutorial about naming of coordination compounds.

[@spalaniammal205]

Can you please explain the 2 standard error.

[@fatimaothman1241]

If my sample size is small, should I do a normality test and why?

[@earnesttechie1494]

What is the difference between standard error and standard error of mean?

[@cranberrykiddo]

Thank youuuuu🙏🙏📚

[@fruitpunch4338]

apparently there are two formulas for standard error
SE = SD/√n
and when two proportion are given
SE = √(pq/n)
also the
SD = √(npq)
so by substituting SD in the 1st formula we should get
SE = √(pq)
but it isn't, could someone explain how this works?

[@dilinapramodya]

Sir,when we get the mean value ,is it answer should be round up?(like 20.8 to 21)

[@mel-ej5pr]

don't round up the mean

[@wzupppp]

why did you divide the sum of the variance by 4 instead of 5 in part 1 but in part 2 you divided by the whole sample size?

[@apotv1]

because the n-1 that's 5-1 will give you 4. N is the number of observations or the sample size. thanks

[@Ann-o2c]

chatgpt's answer is 9.7 how did u get 3.114? I need to know how u get your answer, so I can finish my problems.

[@gayanimadhusha1895]

Perfect

[@brazilfootball]

Anyone know what it means conceptually to calculate the standard error (SE) of a single sample (of sufficient sample size) if SE means the spread of many hypothetical means around a population mean? Assuming you don't know anything about the population.

[@meganquarshie1278]

How did you get 3.114????

[@mtgsalt1151]

I typed all that at 4:10 into my calculator and it told me (keep it real)......

[@mike960]

Thanks u

[@vanshjagyasi5022]

I am getting the standard deviation of the sample as 2.6, can someone please verify the calculation?

[@zelalemgetahun6274]

very interesting

[@isaisa967]

Bros out here passing thousands of students

[@cures_]

Best ever

[@prodkr4m]

the computation is wrong everyone it is 4.303 this the right SE

[@basundharajena57]

But why n - 1

[@danialzangana3953]

because its a sample not full population.

[@arat_]

I have a 64 sample size. excuse me for 5 minutes while I go cry in a corner.

[@briankasia]

Must it be taller though?

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[@scoobslife]

i keep getting 3.84....help lol

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I sorry!!!!!!!!!!!!!!!!!!

[@johnmv5408]

Hope u will reply

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First viewer

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Too micro

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