Like a boss. Thank you, Doctor. I have always been intimidated by statistical tests, because my instructors had me use computer programs as a crutch. This makes so much sense now. Well done.
You just made me fall in love with ANOVA! It's amazing the way you explain with so much simplicity. One look at your video and I'm confident about my test tomorrow! Thank you so much!
I've been struggling to get this during class..... Now I understand Thank you so much Sir. This has been a very comprehensive video and has made the concept quite clear to me. Great work!:)
these videos are the only reason i got through statistics lol. good to have access to a teacher who can actually teach without yelling at students for asking questions and telling personal stories during class time.
i found your video and it really helped me a lot with my biostat's assignment since my lecturer notes are very simplified and they doesnt explain the steps clearly. thanks for teaching!
Sir, this is an excellent walk-through on these calculations for ANOVA, SSW, SSB, MSS-W, MSS-B, and the F-Statistic. I searched the Internet for three hours to find a tutorial walk-through on the calculations, and you provide these here. *Thank you very much!* If you have a method for viewers to send a financial contribution to express our gratitude, please tell me because I am interested and will do it.
Hi Bill, First, many thanks for your very kind comments! RUclips in Ireland does not yet allow donations to content creators - Google have promised this next year. I very much appreciate the thought. Next time you watch and learn from one of my videos - let the ads play and I will receive payment from Google! Yours in learning, Dr E.
Firstly, I'd like to thank you with all my heart for this video, it's a great explanation of a concept I've been unable to understand till now. Thank you! For anyone watching this, to clear up confusion, the 5th value for the first column (4pm to midnight) is 8, and the 9th value for the first column is 8 (since these two are fairly blurry in the video, I was confused with them when I first saw them).
Hi Mr Eugene O'Loughlin, you have helped me so much. Thank you for this iniciative. I have to say, the 5ª variable of the 1º group (4pm at Midnight) is a 8 but is similar a 7. This confused me a little.
Hi, Professor, with the rejection of the null hypothesis, would you be able to do a tutorial on how to perform a Tukey's Test by hand based on this data?
Hi K Yilmaz, Setting a Hypothesis in an ANOVA test is straight-forward. What you are testing for is if there is a difference between two or more of the means. Therefore the Null hypothesis will always be Ho: μ1 = μ2 = μ3 in the case where you are comparing three means. A hypothesis of "Ho: μ1 =7" is not appropriate as you are only asking a question about one of the mean values. If you want to ask the question is the mean of sample 1 equal to a value of 7, then you could use the "Ho: μ1 =7" hypothesis with a One-sample t test instead. Hope this helps, Dr E.
Hi Gabrielle, I didn't. xbar G here is the sum of all 36 values divided by 36 to give a mean of 5.08. If you take the mean of the (three) means you get an answer: 7.40 + 5.15 + 3.23 = 5.25. This is incorrect and will lead to an incorrect ANOVA analysis. You can only use the mean of the means if the sample sizes are the same. Hope this helps, Dr E.
Hi Sharon, As I point out at 3:50 in the video, k is the number of groups that you are comparing. So, in my example, k = 3. If you were comparing four groups, k=4, and so on - it is not a constant. Hope this helps. Dr E.
Thank You Very Much Sir. If different stress are given,(Mental stress,physical stress,overall stress etc).then in this case we have to use one way anova only?
Hi Anuja, Yes - you can compare different types of stress as you suggest, but be careful.... If you have "Mental stress, physical stress, overall stress", be sure that you are comparing like with like. Let's say that they are all measured on a 0-100 scale - then it would be OK to perform the test. But if, for example, Mental stress was measured on a 0-10 scale, and the others 0-100, then you will certainly find a difference. Hope this makes sense. Dr E.
Dr. Eugene, I think the alternate hypothesis should be corrected to some of the three means are not equal i.e. any of the two pairs are not equal instead of stating all of them not equal to each other.
I was searching the whole internet for a "normal" explanation that me as not a mathematician understands... Well done and thanks for it! :)
Good ans
same❤
Every single video you’ve made in this series is very easy to understand and to the point. Thank you very much for your guidance :)
The amount of love and care you put in your explanation is heart melting. Thank you !
Like a boss. Thank you, Doctor.
I have always been intimidated by statistical tests, because my instructors had me use computer programs as a crutch. This makes so much sense now. Well done.
I have never been so clear about the F test in my life after watching your video. Thank you so much!
I have not seen anyone explaining as easy as you did. Thank you very much 🙂👍
You just made me fall in love with ANOVA! It's amazing the way you explain with so much simplicity. One look at your video and I'm confident about my test tomorrow! Thank you so much!
Honestly... Thanks! This video is so well explained and the voice is very calm and well articulated that makes easier to follow.
I’ve seen so many videos and yours is the only one that has helped me THANK YOU!!!
Your videos are honestly amazing and I wish I had encountered them sooner while taking my grad stats classes. Thank you for the work you have put in.
I would be failing Biostatistics right now if I did not have access to your video. I am sending you a thousand thanks from across the ocean.
This is THE best explanation of the one way anova procedure!! Thank you so much professor!
:-)
love the way you are teaching and your accent, thank you
I've been struggling to get this during class..... Now I understand Thank you so much Sir. This has been a very comprehensive video and has made the concept quite clear to me. Great work!:)
these videos are the only reason i got through statistics lol. good to have access to a teacher who can actually teach without yelling at students for asking questions and telling personal stories during class time.
Hi Toni,
Thanks for the comments - much appreciated.
(I do sometimes tell stories too!)
Dr E.
@@EugeneOLoughlin for sure! just gets in the way when it takes up the majority of the lecture block
I love your videos. They are so clear and concise and make things easy to understand. Thank you so much for posting and sharing.
I have not seen anyone explaining as easy as you did. Thank you so much sir, l priciate 🙏
You made ANOVA so simple for me. Thanks Eugene.
I would like to wholeheartedly thank you for your videos! Helped me alot! Blessings!
Thank you so much Sir. This has been a very comprehensive video and has made the concept quite clear to me. Great work!
i found your video and it really helped me a lot with my biostat's assignment since my lecturer notes are very simplified and they doesnt explain the steps clearly. thanks for teaching!
thank you, you explain very well. I am finally able to see a light in all this calculations
THANK YOU THANK YOU THANK YOU, You explained it 10x better than my DOX AP, I loved this
Your video really helped me understand the concept and it came in my end of semester exams..Thank you
Sir, this is an excellent walk-through on these calculations for ANOVA, SSW, SSB, MSS-W, MSS-B, and the F-Statistic. I searched the Internet for three hours to find a tutorial walk-through on the calculations, and you provide these here. *Thank you very much!* If you have a method for viewers to send a financial contribution to express our gratitude, please tell me because I am interested and will do it.
Hi Bill,
First, many thanks for your very kind comments!
RUclips in Ireland does not yet allow donations to content creators - Google have promised this next year. I very much appreciate the thought. Next time you watch and learn from one of my videos - let the ads play and I will receive payment from Google!
Yours in learning,
Dr E.
I got answers to all problems related to this topic. Very easy and understandable. Thank you :)
Hand written explanation is the best
. Thanks
Thank you so much, your video is really helpful to my final exam :)
This is a great explanation of ANOVA. Thanks Eugene!
Easy to understand. Crystal Clear Explanation!
A very comprehensive video, and excellent explanation. Thanks a ton
Amazing video as always, thank you so much for your time and dedication.
i got a big test tomorrow and this video really helps me a lot! thank you for such handy and great explainations video
Really explanatory, you are a great teacher.
This is very easy to follow video and very useful. Thanks for making such a wonderful video!!
Thank you very much...i really don't know how to appreciate ur work...😋😋😋😍😍😍😘😘😘😘😘...you r great man...😋😋😋
Firstly, I'd like to thank you with all my heart for this video, it's a great explanation of a concept I've been unable to understand till now. Thank you!
For anyone watching this, to clear up confusion, the 5th value for the first column (4pm to midnight) is 8, and the 9th value for the first column is 8 (since these two are fairly blurry in the video, I was confused with them when I first saw them).
Very useful esp when I am here trying to learn it before exams.. Thank you.. 😊😊
Your videos are great test reviews/practice. Thank you!
You explain better than my professor!
Thanks so much. I missed 1 class and i swear it was one of the most complicated things all semester 😅
Wow.. great explanation Sir. Thank you very much..
Thank you Sir.
Your explanation was superb 👌
Thank you so much for this explanation. I appreciate the step by step instructions.
Smashing Eugene, I'm gonna hit a ringer on my anova table tomorrow. Wish me luck m8
Excellent video, no nonsense, well explained.
Please share the sheet that was used at the end for cross check whether the answer is < or >
Great and a systematic video!!! Love your videos!!
Understanding what is happening behind a SPSS :) Thank you!
This has been so incredibly helpful, thank you so much for the video!
Thank you so much sir!!! This video helped me a lot... This method is really easy to understand and solve... Thank you so much once again.. ☺
You make one-way anova soo simple. thanx very much
a very much needed demonstration, thank you very much.
Thank you very much. What an easy way of understanding oneway Anova.
Thanks a lot sir ....
You explained the concept really well
Outstanding! Will be using in my class later today (with proper credits of course, puns intended)
Neat job...thanks for that splendid explanation 👏🏼👏🏼
Absolutely life saving!
Thank you for your brilliance!
Thank you soooooo much Sir you have really helped me understand this..... It was of great help for my math research work
Tasha Mapenzi math has research work?
Tqs sir because of u today I got 8 marks ❤
Thank you. Finally, it helped me to understand ANOVA in detail. Manual calculations is a great way to learn.
Thanks alot 😊
Thank you sir! Super easy to understand and organised.
Hi Mr Eugene O'Loughlin, you have helped me so much. Thank you for this iniciative. I have to say, the 5ª variable of the 1º group (4pm at Midnight) is a 8 but is similar a 7. This confused me a little.
#great explanation awsome technique camera focus good enough ... Thanks a lot .... :-)
Hi, Professor, with the rejection of the null hypothesis, would you be able to do a tutorial on how to perform a Tukey's Test by hand based on this data?
Is it necessary to look for Total sum of squares
i didnt attend my prof class because i took mc leave but you save me, prof❤ thanks
Thank you very much sir... watching from kashmir
How to calculate sample size
thanks Eugene, fantastic explanation!
Excellent video. Well done!
You are the GOAT.
Best Dr. 💕
Thank you for the video got missed up previously but it's clear now!!!!
In the field of research. Should I use independent variables as data?
Why we need to take alpha 0.05 also why are we seeing table in which 0.05 is written at the top
thank you you are a great teacher
Thank you so much sir, It was really a lucid explanation.
Is this the same one way anova which has been giving problem all the way? ( Anova see you in the exam room)
Thank you so much...this is really helpful👍👍👍🔥
this helped me so much, thank you
Hello. If our hypothesis was "Ho: μ1 =7", what would our solution be?
Hi K Yilmaz,
Setting a Hypothesis in an ANOVA test is straight-forward. What you are testing for is if there is a difference between two or more of the means. Therefore the Null hypothesis will always be Ho: μ1 = μ2 = μ3 in the case where you are comparing three means. A hypothesis of "Ho: μ1 =7" is not appropriate as you are only asking a question about one of the mean values.
If you want to ask the question is the mean of sample 1 equal to a value of 7, then you could use the "Ho: μ1 =7" hypothesis with a One-sample t test instead.
Hope this helps,
Dr E.
@@EugeneOLoughlin Thanks for your answer. I will search again like this.
an amazing explanation! thank you so much
extremely helpful video. thank you!
Lot of thanks for this video sir.
why did you end up calculating the mean of the means if your sample sizes are unequal?
Hi Gabrielle,
I didn't.
xbar G here is the sum of all 36 values divided by 36 to give a mean of 5.08.
If you take the mean of the (three) means you get an answer: 7.40 + 5.15 + 3.23 = 5.25. This is incorrect and will lead to an incorrect ANOVA analysis.
You can only use the mean of the means if the sample sizes are the same.
Hope this helps,
Dr E.
Thanks a bunch Sir
Real life saver 🙌 🙏 👏
great help any chance of a 2 way ANOVA video?
Great explanation. Thank you
Easy to understand. Thank you sir.
how do we deteemine what K is is the K always constant as 3?
Hi Sharon,
As I point out at 3:50 in the video, k is the number of groups that you are comparing. So, in my example, k = 3. If you were comparing four groups, k=4, and so on - it is not a constant.
Hope this helps.
Dr E.
Hi Professor, I would be curious to know how to perform an ANCOVA by hand. Would you be able to do a tutorial for this subject? Thank you once again.
Thank You Very Much Sir.
If different stress are given,(Mental stress,physical stress,overall stress etc).then in this case we have to use one way anova only?
Hi Anuja,
Yes - you can compare different types of stress as you suggest, but be careful....
If you have "Mental stress, physical stress, overall stress", be sure that you are comparing like with like. Let's say that they are all measured on a 0-100 scale - then it would be OK to perform the test. But if, for example, Mental stress was measured on a 0-10 scale, and the others 0-100, then you will certainly find a difference.
Hope this makes sense.
Dr E.
Dr. Eugene, I think the alternate hypothesis should be corrected to some of the three means are not equal i.e. any of the two pairs are not equal instead of stating all of them not equal to each other.
how can i calculate the squared residuals (X1-X1 bar)^2 etc.. if my data set has many observations? (n>1000)
You can always use a computer program such as MATLAB or R to do it for you
Phenomenal video, thank you!
Outstanding Sir. Sir you are great
This saved me! Thank you!