Use the Z score formula to calculate Z then You use Z value table. 2.61 is a Z score and the probability for 2.61 from the table is 0.9955. However this value is the area (1-a). So to find the correct area of the tail, you subtract 0.9955 from 1 which gives 0.0045
2019 and it's the night before my data science exam!!! how my lecturer didn't explain it like this is a mystery- thanks for saving me from a meltdown!!!
I just wanted to tell you that your tutorials helped me get an A in my online Stats class! I work as a student assistant in the library at my college and I pass your channel info on all the time to help other students. Thank you so much for breaking the concepts down to make it more understandable. :)
Excellent explanation and easy to understand. Wish I found this before my exam too. The stats book is too long and the relevant information all over the place. This is how everyone should learn hypothesis testing.
In this video I refer to a "table" to find the value of probabilities (or area). Here is a video that explains what table I refer to as well as how to use it: ua-cam.com/video/zZWd56VlN7w/v-deo.html
Thank you for this video! My AP stats teacher doesn't explain it very well, and its either a hit or miss with me when she is lecturing. But you explained it very fast and simple Thanks again!
I like your P-Value testing approach - it is better than my college-level statistics course. With "null testing" - you get some "negatives". If you are testing a "research hypothesis", the you are almost always looking for a "one tail test". Your "research hypothesis" can be very strong by these methods. Thanks for your effort!
I have been trying to wrap my brain around this for two weeks. Am in Analytical Statistics and this is a major focus right now. I finally now get it, THANK YOU!!!!!!!!!!
omg. finally someone who kept things simple and easy to understand. THANK YOU SO MUCH! You're one of the few people who didn't go on rambling too much. You kept things concise and clear.
You explain this really well! I remember this helping me in my introductory stats course 2 years ago, and now I'm reviewing it again for my upper level stats course as a refresher! Thanks again! :)
I kept getting the p-value and proportion formulas mixed up and I've been trying all semester to wrap my head around it and basically I learned it under 10 minutes because of your amazing video and simple explanations! Thank you so much!!
you have the beautiful and rare gift of teaching Mr. Anonymous! i am in a statistics class and am taking my college final tomorrow morning. you dont understand how much this one video has helped me!! i have had a brilliant math tutor and professor who have yet to teach it so simple as you do. i hope you are planing to be a teacher or already are one because you are brilliant . thanks again! -your newest fan.
Thank you so much. You just explained the whole thing in 10 minutes while my professor couldn't even explain like this in 3 hours using bunch of examples.
I have an exam next week and missed out on 2 lectures about hypothesis testing and hypothesis p-value method and you saved my life! Feeling much more confident, so easy to understand compared to all the books. Thanks for being straight to the point!
If the P value is low, H0 must go (reject). If the p value is high, H0 will fly (do not reflect H0) what a helpful phrase. Thank you for making this so understandable!!
Literally all I could ask for in a stats video. took elementary 3 years ago and now am taking stats 252. This video refreshed my brain since my professor runs too fast. Thanks for the help!!!
This helped alot! I have a short report to make for class and this cleared up right-tail confusion of where the P-value even came from and why. Already saw a few videos through google threads and such, but this was straight to the point and clear. Thanks!
Ive been looking all over youtube for a video that explains this and you did that perfectly. My proffessor does not know how to teach in statistics becasue she didnt major in it so i have to basically teach my self via internet so thank you sir for doing an excellent job i finally get it my brotha RESPECT my brotha RESPECT
OMG thank your sir. you are like my life saver. I could not get it when my teacher or my friends were teaching me. you explained it so well and clearly i can now understand the stuff i need to know for my exam next week. THANK YOU!!
Well, I am doing a data science course that mentions the p value but the course doesn't really cover it in enough details. I am glad I found this tutorial. Even if it is 10 years old, it still helped. Thank you
Thank you for doing this. it was very easy to understand. Whoever thought to put these math videos online for free is a saint and so are you. This helped me complete my final exam. Thank you and I wish you the best. :)
Thank you so much for this! For my stats homework I was assigned a series of problems and for some of them I had to use p-value method and for others I had to use the traditional method and your two videos on both topics really really helped. If I manage to get an A on my quiz tomorrow it'll be because of you :)
Great job! But you should have shown the table and the usage of it in this video. Because I watched this video when I got first introduced to this topic and didn't understand it. After a week I learned about P-value and when I came back to watch this video again I understood. I think it will be convenient to explain it in one video. Thanks anyways!
I cannot thank you enough for your fantastic explanation! As an online student I was struggling a bit with our text regarding hypothesis testing and P-Values, but you've made it much more clear. :)
If you're not given an alpha value, then look for something similar like "level of significance at 90%", which is the same thing as alpha = 0.10. A 95% level of significance translates into alpha = 0.05, and 99% level of signif means alpha = 0.01. What if you don't see a level of significance? Then, I'm guessing that you get to set alpha yourself. If that's the case, then set alpha to either 0.01, 0.05, or 0.10 depending on how critical it would be if you made a Type I error.
This video is awesome! I missed a day of class and was a little confused. I watched this video a few times and took notes and now I totally get it. You made it very easy to understand and gave little tricks that make it easy to remember. Thank you so much!
Thank you! I'm in business stats 2 and although I am familiar with finding critical values for t and z the p value has completely thrown me off! My instructor does not give lectures (I can contact her for help), and the class is solely taught by Hawkes Learning software (which is not always direct with information). This video saved me a lot of time. I've been scouring the internet trying to figure out how I find my p-value and your video put it very simple.
I probably would not mind statistics if it could be taught like this 24/7. This video literally saved my sanity. I had 2 different people trying to help me decipher what my textbook was trying to convey through vague wordy descriptions. Many frustrated hours later, I concluded the class was too complicated and I was doomed to fail. Enter sudden bright idea to check UA-cam! Why in the world are we paying so much for something that only requires a ten-minute video explanation? To the creator of this video, you should be so proud of yourself. And thank you. Thank you for saving my sanity and my class score. #screwtraditionalclasses #letsdoyoutubecollege
This is such a great help really, my statistics professor is kind of...not very great at explaining this stuff and the homework he assigns helps with the steps, but not with understanding when to use what procedure and why you use it.
@poysermath excellent presentation, sir; you have constructed a clear, methodical and thorough calculation of the p-value method for hypothesis testing. Best on the web that I have seen. Thank you so much!
In traditional method, the critical value is equivalent to alpha and we can test our claim by comparing T-value and the critical value(Z), which makes sense. By using P-value method, the example you mentioned in this video, right-tailed test, the shaded area is 0.0045 which is P-value, and compare p-value with given alpha 0.01, we can test our claim.However, as alpha is given so it means that the critical area is 0.01 which is in the right tail so it seems the same as the shaded area(P-value)
Hey, is homework stressing you up? Having trouble balancing classes with work/life? Send me an email an I will help you out in essays, statistical units(regression analysis, test statistic, hypothesis testing Qmb 2100,3200) ,kristenchantelle@gmail.com Safe, timely and quality assignments is guaranteed.
thanks so much sir! u're such an excellent teacher. i wish u're my professor. tomorrow is my statistic final exam, and this helps a lot, i understood a lot now thanks so much !!! :')
Why? p value is related to various confidence levels, say from lower confidence level to higher, 90, 95 & 99% as an example, which determines the higher significance level from higher to lower 10, 5 & 1% as an example. Testing based on lower confidence level has higher significance because it is a higher level of risk mitigation? Conversely, Testing based on higher confidence level has lower significance because it is a smaller risk mitigation? Please help me intuitively understand this? smaller p value means lower probability or likelihood of occurrence in a sample, given the population mean is true? & likewise higher p value means higher probability or likelihood of occurrence in a sample, given population mean value is true? & we reject the null because because of the lower probability of occurrence found in the sample, given the population mean is assumed to true. Could u explain with an example of coin thrown 2 times in a row? Could u explain with an example of dice thrown few times in a row? Could u include p value based hypothesis testing using the above examples? Thanks
The area to the LEFT of a test statistic of -2.61 equals .0045. The area to the RIGHT of a test statistic of 2.61 equals .0045. So, the P-value is the area in the tail of the test statistic. Shade to the left or to the right by reading the Alternative Hypothesis ("Ha" or "H1"). If Ha: u less # then it's a left-tail test. If Ha: u greater # then it's a right-tail test. If Ha: u not= # then it's a two-tail test, and the area in the tail must be doubled to find the P-value.
Splendid explanation. Making it very practical.This is what we lack from our lecturers making the course very tough and unlikeable. The explanation where null hypothesis was accepted because of high p value rather confused me because l thought with the null hypothesis, there is always no difference between two means.
You are awesome! :-) You explain things step by step, for the most part. I had to go back to figure out how to use the Standard Normal Distribution table, but overall, I got it! Online learning is so hard when all you really have is the book to look at and it is confusing.
im sorry but u literally just threw that .0045 from thin air for a maths tutorial not explaining that properly isn't good. is that figure arbitrary, does it just depend on the particular question?
LOL. No hate felt my friend. But your comment made me stop and think about my video more. So, I updated it, thanks to you! I now have a comment pop up during the video to point viewers to my other video that explains where the .0045 comes from. So, I thank you for your comment!
Wow this really helped me so much especially after the 7 minute mark! Thank you so much you explained this a lot better than my college professor did in the 3 hour lecture!!
Watching this 30 minutes before my stats final. Wish me luck, fellas
Andrew Green I have mine in an hour😭😭😭 how’d you do?
Same... how’d it go
How did you do?
J. S. 70 🤷♂️
@@Jeremysworld777 Solid B haha
you're teaching me more in a short video what my (heavily accented) lecturer fails to teach me in 3 hours
+John Law I was just about to comment this. We've been learning this for about 3 weeks and he taught me more in 5 minutes.
+Big One and me too my case is 5weeks haha
skievl23 No shit. You literally just explained learning.
+John Law I have a heavily accented professor as well LMAO
Saaaaame. Some sort of Middle Eastern accent here.
You explained in 10 minutes what my teacher couldn't explain in 1 hour! Thanks :)
And mine in three hours!!!!!!🤣😂🤣😂
Three weeks*
Use the Z score formula to calculate Z then
You use Z value table.
2.61 is a Z score and the probability for 2.61 from the table is 0.9955.
However this value is the area (1-a). So to find the correct area of the tail, you subtract 0.9955 from 1 which gives 0.0045
Thank you for the help was confused
Studying statistics for the first time in my final year of university.. its like another language.
you've made such a difference. THANK YOU!
im studying it for the first time too and im supposed to graduate in may, i hate it, i've always hated math
2019 and it's the night before my data science exam!!! how my lecturer didn't explain it like this is a mystery- thanks for saving me from a meltdown!!!
I just wanted to tell you that your tutorials helped me get an A in my online Stats class! I work as a student assistant in the library at my college and I pass your channel info on all the time to help other students. Thank you so much for breaking the concepts down to make it more understandable. :)
Excellent explanation and easy to understand. Wish I found this before my exam too. The stats book is too long and the relevant information all over the place. This is how everyone should learn hypothesis testing.
I've watched this man's videos throughout my stats course. He's great, has the gift of teaching. Thank you kind sir.
In this video I refer to a "table" to find the value of probabilities (or area). Here is a video that explains what table I refer to as well as how to use it: ua-cam.com/video/zZWd56VlN7w/v-deo.html
Thank you for this video! My AP stats teacher doesn't explain it very well, and its either a hit or miss with me when she is lecturing. But you explained it very fast and simple Thanks again!
I like your P-Value testing approach - it is better than my college-level statistics course. With "null testing" - you get some "negatives". If you are testing a "research hypothesis", the you are almost always looking for a "one tail test". Your "research hypothesis" can be very strong by these methods. Thanks for your effort!
I have been trying to wrap my brain around this for two weeks. Am in Analytical Statistics and this is a major focus right now. I finally now get it, THANK YOU!!!!!!!!!!
omg. finally someone who kept things simple and easy to understand. THANK YOU SO MUCH! You're one of the few people who didn't go on rambling too much. You kept things concise and clear.
That was one of the best 9 mins of Statistics I've ever had. I totally understand the p-value method now. Thank you very much.
Proud to call him my friend. His explanations are super. best math professor in Massachusetts
You explain this really well! I remember this helping me in my introductory stats course 2 years ago, and now I'm reviewing it again for my upper level stats course as a refresher! Thanks again! :)
I kept getting the p-value and proportion formulas mixed up and I've been trying all semester to wrap my head around it and basically I learned it under 10 minutes because of your amazing video and simple explanations! Thank you so much!!
Thanks for walking through the hypothesis testing using the p-value method. I find it very simple to grasp.
you have the beautiful and rare gift of teaching Mr. Anonymous!
i am in a statistics class and am taking my college final tomorrow morning. you dont understand how much this one video has helped me!! i have had a brilliant math tutor and professor who have yet to teach it so simple as you do. i hope you are planing to be a teacher or already are one because you are brilliant . thanks again!
-your newest fan.
This video taught me more about p values in 10 minutes than a month worth of sitting in my stats class. Thank you SO much!
Thank you so much. You just explained the whole thing in 10 minutes while my professor couldn't even explain like this in 3 hours using bunch of examples.
This is great man, this man is gifted and knows how slow people think hence his teaching.
This 10 minutes video was explaining Hypothesis Testing much better than a lot of long and boring videos out there.
Stats 226 at University, Exam #2 is in an hour. Never figured out how to do P-Values until I saw this video. Thank you.
I can say, this is the best hypothesis explanation by far.
Awesome 🙌 having a clear and easy to understand voice is so rare anymore! Beautiful
I wish I found your videos earlier than the night before my exam... Super helpful though, thank you!!!
How did you do?
Omgsh same
Thank you very much! I knew this all a year ago but I had completely forgotten it, and now it has all come flooding back.
I have an exam next week and missed out on 2 lectures about hypothesis testing and hypothesis p-value method and you saved my life! Feeling much more confident, so easy to understand compared to all the books. Thanks for being straight to the point!
If the P value is low, H0 must go (reject). If the p value is high, H0 will fly (do not reflect H0) what a helpful phrase. Thank you for making this so understandable!!
Watching in 2022 really helped me understand about the P-value. Thank you 🙏
Wow! I'm paying tuition for a graduate course that fails to teach me as much as UA-cam. Tragic.
Great Video! Cleared up so much for me!
Literally all I could ask for in a stats video. took elementary 3 years ago and now am taking stats 252. This video refreshed my brain since my professor runs too fast. Thanks for the help!!!
This helped alot! I have a short report to make for class and this cleared up right-tail confusion of where the P-value even came from and why.
Already saw a few videos through google threads and such, but this was straight to the point and clear. Thanks!
Ive been looking all over youtube for a video that explains this and you did that perfectly. My proffessor does not know how to teach in statistics becasue she didnt major in it so i have to basically teach my self via internet so thank you sir for doing an excellent job i finally get it my brotha RESPECT my brotha RESPECT
Thank you. Why don't most professors explain stats like this? Love the rhyme!!!
YOU ARE THE BEST IN ALL OF UA-cam AND ALL OF MY PROFESSORS AT TEACHING STATISTICS. THANKS FOR GETTING POINTS ACROSS SO WELL!
OMG thank your sir. you are like my life saver.
I could not get it when my teacher or my friends were teaching me. you explained it so well and clearly i can now understand the stuff i need to know for my exam next week. THANK YOU!!
Well, I am doing a data science course that mentions the p value but the course doesn't really cover it in enough details. I am glad I found this tutorial. Even if it is 10 years old, it still helped. Thank you
my prof tried to teach this topic in 2 hours and failed. you clearly explained just in 10 min. congrats. 1 hour left to my final :))
This is a life saver for me in Stat right now. I wasn't aware that I could do it this way. Much easier.
Thank you for posting! I was forgetting one piece, and you cleared it up for me.
I don't usually comment on videos, but you made totally sense and now I am not confused on p-value testing! Thank you!
Thank you for uploading this! you are a very good instructor and I've been looking everywhere for a simplified solution to hypothesis testing!
Thank you for doing this. it was very easy to understand. Whoever thought to put these math videos online for free is a saint and so are you. This helped me complete my final exam. Thank you and I wish you the best. :)
if the p- value is low, reject the null: motto for the rest of 2019
Thank you so much for this! For my stats homework I was assigned a series of problems and for some of them I had to use p-value method and for others I had to use the traditional method and your two videos on both topics really really helped. If I manage to get an A on my quiz tomorrow it'll be because of you :)
Great job! But you should have shown the table and the usage of it in this video. Because I watched this video when I got first introduced to this topic and didn't understand it. After a week I learned about P-value and when I came back to watch this video again I understood. I think it will be convenient to explain it in one video. Thanks anyways!
Great explanation, the tailed tests are more convincing than any other videos available, regardless to any resources.
Thank you so much man, I have a statistics exam tomorrow and this helped a bunch :D
I cannot thank you enough for your fantastic explanation! As an online student I was struggling a bit with our text regarding hypothesis testing and P-Values, but you've made it much more clear. :)
maaan your videos are amazing, you dont miss any details to explain, i applaud you. i hope other people can learn from you
Great videos!!! Helped me out a lot in determining difference between traditional & p value method
Thank you very much! You have taught me in this 10 minutes more than my professor has in an hour and a half. Great Job.
You are the Best Statistic Teacher.
The Fact That I Did Not Know Anything About Hypothesis Testing Is Now Incorrect. I Actually Know How To Do It Now. Thank You :)
I've been struggling with statistics, and these videos make it easier to understand. Thanks so much!
If you're not given an alpha value, then look for something similar like "level of significance at 90%", which is the same thing as alpha = 0.10. A 95% level of significance translates into alpha = 0.05, and 99% level of signif means alpha = 0.01.
What if you don't see a level of significance? Then, I'm guessing that you get to set alpha yourself. If that's the case, then set alpha to either 0.01, 0.05, or 0.10 depending on how critical it would be if you made a Type I error.
which degree of freedom did you use to get p value
This video is awesome! I missed a day of class and was a little confused. I watched this video a few times and took notes and now I totally get it. You made it very easy to understand and gave little tricks that make it easy to remember. Thank you so much!
i found this more helpful than khan academy. I like how your to the point. Thanks Wish my luck on my exam now.
This helped me understand it so much better than the book. Thank you for this!
Thank you! I'm in business stats 2 and although I am familiar with finding critical values for t and z the p value has completely thrown me off! My instructor does not give lectures (I can contact her for help), and the class is solely taught by Hawkes Learning software (which is not always direct with information). This video saved me a lot of time. I've been scouring the internet trying to figure out how I find my p-value and your video put it very simple.
This dude gonna get infinite amount of views cause there will always be students talking Stats
Colin Engel
That’s what I love about Math.
The methods don’t change over the years
I️ have a midterm tomorrow and this is super helpful for last minute notes. Thanks for the video!
Brilliant explanation! Most of the books don't explain p-value well.Thanks a lot..
im studying for my final, that's in a couple hours, and this actually made sense... thank you.
I probably would not mind statistics if it could be taught like this 24/7. This video literally saved my sanity. I had 2 different people trying to help me decipher what my textbook was trying to convey through vague wordy descriptions. Many frustrated hours later, I concluded the class was too complicated and I was doomed to fail. Enter sudden bright idea to check UA-cam! Why in the world are we paying so much for something that only requires a ten-minute video explanation? To the creator of this video, you should be so proud of yourself. And thank you. Thank you for saving my sanity and my class score. #screwtraditionalclasses #letsdoyoutubecollege
Thank you so much! You managed to make something as abstract as this easily understandable! Thank You!
This is incredible! You break it down so nicely and make it easy to understand. Thanks for your help!
This is such a great help really, my statistics professor is kind of...not very great at explaining this stuff and the homework he assigns helps with the steps, but not with understanding when to use what procedure and why you use it.
@poysermath excellent presentation, sir; you have constructed a clear, methodical and thorough calculation of the p-value method for hypothesis testing. Best on the web that I have seen. Thank you so much!
My professor literally doesn't teach at all! I've taught myself all 7 chapters so far so thank you for these helpful videos!
In traditional method, the critical value is equivalent to alpha and we can test our claim by comparing T-value and the critical value(Z), which makes sense. By using P-value method, the example you mentioned in this video, right-tailed test, the shaded area is 0.0045 which is P-value, and compare p-value with given alpha 0.01, we can test our claim.However, as alpha is given so it means that the critical area is 0.01 which is in the right tail so it seems the same as the shaded area(P-value)
I finally understand 1 tail and 2 tailed tests.Finally!
Thank you for the time and effort you have put into your videos, they are greatly appreciated!
In 10 minutes I learned a lesson that took a week of discussion and I didn't have the energy to listen to the teacher
Hey, is homework stressing you up? Having trouble balancing classes with work/life? Send me an email an I will help you out in essays, statistical units(regression analysis, test statistic, hypothesis testing Qmb 2100,3200) ,kristenchantelle@gmail.com
Safe, timely and quality assignments is guaranteed.
thanks so much sir! u're such an excellent teacher. i wish u're my professor. tomorrow is my statistic final exam, and this helps a lot, i understood a lot now thanks so much !!! :')
Amazinf video. You're really good at teaching. Keeping things simple for us to understand and not go off topic like many other teachers do..
This video is very helpful! I've never taken stats before so I was struggling with this concept. Thanks for taking the time to make this!
Best video out so far. I finally understood it!
This man is the Bob Ross of statistics
Why?
p value is related to various confidence levels, say from lower confidence level to higher, 90, 95 & 99% as an example, which determines the higher significance level from higher to lower 10, 5 & 1% as an example. Testing based on lower confidence level has higher significance because it is a higher level of risk mitigation?
Conversely, Testing based on higher confidence level has lower significance because it is a smaller risk mitigation? Please help me intuitively understand this?
smaller p value means lower probability or likelihood of occurrence in a sample, given the population mean is true? & likewise higher p value means
higher probability or likelihood of occurrence in a sample, given population mean value is true?
& we reject the null because because of the lower probability of occurrence found in the sample, given the population mean is assumed to true.
Could u explain with an example of coin thrown 2 times in a row?
Could u explain with an example of dice thrown few times in a row?
Could u include p value based hypothesis testing using the above examples?
Thanks
Still don't get it...and never will #someonepray4me
prayers
+L Gertrude (Wattpad) haha I was in a bad mood that day...I get it now and so far have around an A- on the class
+Living In A Fantasy that's good! :D I have an A as well. but I'm struggling rn on my homework hahaha.
same
ua-cam.com/video/eyknGvncKLw/v-deo.html
You rock man! You're way better than my Prof in explaining that stuff!
Thank you.
Greetz from Germany
The area to the LEFT of a test statistic of -2.61 equals .0045. The area to the RIGHT of a test statistic of 2.61 equals .0045.
So, the P-value is the area in the tail of the test statistic. Shade to the left or to the right by reading the Alternative Hypothesis ("Ha" or "H1").
If Ha: u less # then it's a left-tail test.
If Ha: u greater # then it's a right-tail test.
If Ha: u not= # then it's a two-tail test, and the area in the tail must be doubled to find the P-value.
You are an excellent teacher. Very thorough.
Finally I undertood the P-value thanks!
Thank you. This helped better than my professor's explanation of the subject!
You are brilliant! Definitely following your calling this is the best explanation I've found very clear and concise. Thank you for sharing!
Your teaching style is genius!
Thank you very much. This is easy to understand to stats learners like me. God bless you.
Excellent presentation, sir!!! You have clarified and emphasized all the important points.
gotta love this guy!! best explanations I've seen so far.
Splendid explanation. Making it very practical.This is what we lack from our lecturers making the course very tough and unlikeable. The explanation where null hypothesis was accepted because of high p value rather confused me because l thought with the null hypothesis, there is always no difference between two means.
thank you so much for the mnemonic on go and fly. That made this whole thing so clear to me like you have no idea of. Thank you
You are awesome! :-) You explain things step by step, for the most part. I had to go back to figure out how to use the Standard Normal Distribution table, but overall, I got it! Online learning is so hard when all you really have is the book to look at and it is confusing.
why cant you be my professor, i learned more from you in 10 minutes than i have from a weeks worth of class
im sorry but u literally just threw that .0045 from thin air for a maths tutorial not explaining that properly isn't good. is that figure arbitrary, does it just depend on the particular question?
The purpose of this video is to show how P-value method works. I showed how to find the area of probabilities in a separate video.
poysermath Sorry no hate.
LOL. No hate felt my friend. But your comment made me stop and think about my video more. So, I updated it, thanks to you! I now have a comment pop up during the video to point viewers to my other video that explains where the .0045 comes from. So, I thank you for your comment!
Wow this really helped me so much especially after the 7 minute mark! Thank you so much you explained this a lot better than my college professor did in the 3 hour lecture!!