Regression Analysis (Evaluate Predicted Linear Equation, R-Squared, F-Test, T-Test, P-Values, Etc.)
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- čas přidán 31. 03. 2014
- Multiple Linear Regression Analysis, Evaluating Estimated Linear Regression Function (Looking at a single Independent Variable), basic approach to test relationships, (1) 𝐑^𝟐 Correlation between X (Independent Variable) & Y (Dependent Variable), F-Test, (2) Regression Analysis: If there is a significant relationship between X (Independent Variable) & Y (Dependent Variable), T-Test, (3) Explaining how to calculate the Degrees Of Freedom for the F-Test & T-Test, detailed discussion comparing two different regression equations to see which best predicts the dependent variable by Allen Mursau
Thanks in a million! Very well explained. This is the nth time that I am watching this again. Great content. Awesome. I couldn't find this explanation--simply put anywhere else. “Great teachers are hard to find”. Grade: A++ 💥
Thank you for this well explained lecture.
I really got the solution to my problems on linear regression.
Best video on CZcams, which explains a lot more than others
One of the best explinations on this topic. thanks.
Very detailed and vivid explanation! Thank you!
Very thorough! Thanks :)
This is the best lecture in statistics on my entire life.
Great job! An awesome lesson. Well done sir!
Probably one of the best explanation of regression output
Thank you for your time Mr. Mursau. 🙏
Good slides, not overloaded. Because you can clearly see where everything comes from.
You get my like
Great! Solved my numerous queries!
Very nice video. I would love to get more insight about the explanations on "why is it so" and no just what to apply. I'm reading more theoretical material but I'm still trying to connect the dots.
Been looking for such explanation, thanks
Thank you for sharing this, it is really helpful
Great Lecture! Thank you very much in deed.
Thank you Allen for this wonderful session ..... explained nicely and very helpful Thank you again :-)
Thanks Allen. Very useful.
It is a perfect explanation. Thank you, sir.
Thank you, Sir!
Best.. The best tutorial in depth.. Thanks a lot sir
Very helpful video. Thank you.
Valuable video!!
Can you please explain how the regression results in excel can be used to tell If the coefficient sufficiently different from zero or it is sufficiently different from one
Good and to the point explanation sir. Thanks.
Great job, thanks a lot
Excellent Video. Thanks a lot
Thank you, best ever!
Thanks a lot !
Thank you!
Thanks! awesomely explained. please make a lecture for heteroscedicity Tests and remedies too. Thanks in advance.
You're wrong sweetheart.
@@MrSupernova111 hahaha not everyone good at English words
Thank you. You make this all seems so easy.
Thank you very much
Really informative slides thank you, what would have helped is at the end if you slowed down and went into a bit more detail as to what exactly each of the tests were used for and what they meant during our conclusion, this is what usually comes up in exams. Great work nonetheless!
Thanks for video....
Explained well sir
Thanks!
Absolutely out of this world. I can’t explain them In words. God Bless you Sir!!!!! Cheers!,,,,
Thank you
Genius!
Very helpfull, would it be possible to get the excel
wonderful
Hello, your video is very useful. I have a doubt when 0 or value less than cero appears in the confidence interval, You mention that there is no linear relationship between x and y values. If this happens can a quadratic or cubic model be given? or what could be the model?
Please, woul you explain me.
Thanks.
vry greatful to u
Have you tried adding a few more things per slide? To make sure nothing gets missed. Thanks!
Thanks Sir
Very good, so what if one of the coefficients fail the test? Do you have to redo the model without that variable then?
The highlight yellow circle keeps changing the color from blue to green, since yellow + blue = green
good. I like it.
Please create a few playlists. It's impossible to find these videos in your channel. :/
shouldnt the finv and fdist formula be for 2 tail test ? Please assist
does anyone know how the estimated variance of the estimated coefficient is calculated??
How did you make those graphs i have all my data but i dont knoe how to make those graphs
why n-k-1, my test book does not include 1
what if i got a t-stat value that is exactly 2.28 is it still passed?
I think there is small mistake on the slide. SSE(yellow) is actually distance from the actual point to regression line, and SSR(green) is supposed to be from mean line to regression line.
Good
Overloaded slides !!!!
I liked that personally, because I could get everything at one glance and follow
Please let me know if you can help me with review literature .. of course, i'll respect your time and efforts ..
muy bueno
is the regression analysis using Excel available for download ?
Sir i carried out multiple regression. and my f value for 6,7 degree of freedom at 5% significance level came out 2186010... isn't it too large?
Very helpfully
correct me if I'm wrong but I'm a bit confused here. Doesn't the rule say that if the t-statistic or the calculated value is more than the critical value, we reject the null hypothesis? Then how are we passing the test here?
According to the curve, the t value should lie between -2.228
yes we reject the null hypothesis.. meaning we pass the alternative hypothesis.. he was referring to the alternative test when he said pass/fail.
Null hypothesis means "m" is = 0 so y would become y=b which means x is not related to y. We don't want that...it would mean no relationship between x and y, thus we reject this and accept alternative... meaning m different from zero...thus there is a relationship between y and x...that would be y =mx+b
what do u mean by 5 percent probability
a Biggggggggggggggggggggggggggggg B Sir your are the best
Hi , can i know how you got F value 10.89?
Formula not working T.INV.2T
still cant understand...
He sounds like kripky from big bang theory
You made my day :D
calculate critical and" f " statistic value considering the following information :
Significance level 0.05
Numerator 11.
denominator 3.
Total sum of Square 160.
Treatment sum of square 60.
Observation number 25.
treatment number 5.
By solving this someone help me.
Understandable, but the graphics are really kind of messy. Thousand colourful things at one page.
Here's the question: IS THE ANSWER E?)
Which of the following tells us how strong the relationship is between two variables?
a) the slope of a line
b) the intercept of a line
c) the coefficient of determination
d) the coefficient of correlation
e) both C and D are correct
RIP Headphone users
sorry, but the t distrubution, you explain it wrong... if it is inside the numbers, your h0 will be stay... learn again
You should be looking at Adjusted-R2 and not R2 for multiple regression
Several minor mistakes, but...
This is probably the mushiest explanation ever. Way to many colors that are completely unrelated..