Really great video, thanks! But "usually we can use a statistic software" --> not if you're a student and you've got to do it *all* yourself, meaning in the exam we'll get a t-table, a z-table, a quantile F-distribution, chi-squared table, a table with tolerance limits,...
Why if the test statistic is one the left side of the distribution the real mean is on the left side of the distribution then the true mean is less than 0 and not more?
I'm not sure if you will reply, but I'm curious if there is any way to calculate this using some tool in Excel? I realize that if you have two samples you can perform a t-test, but say if I wanted to apply these numbers given in this video and calculate the answer with excel? The table in my book doesn't have enough variety in the degrees of freedom and such.
Hy. In this video : ruclips.net/video/T9nI6vhTU1Y/видео.html, at 10:42, you say that the area is the one BEYOND (to the right) the t-value. But in this actual video at 05:42, you say it's the area BEFORE (to the left) the t-value. How do you choose between "BEYOND" and "BEFORE" when it's two-sided test ?
You're welcome, and thanks for the compliment! I'm very glad to be of help.
Best channel of statistic
Thanks!
Really great video, thanks!
But "usually we can use a statistic software" --> not if you're a student and you've got to do it *all* yourself, meaning in the exam we'll get a t-table, a z-table, a quantile F-distribution, chi-squared table, a table with tolerance limits,...
Exactly had the same thought ..it sucks
They should provide computers :(
Your videos are amazing! Thanks a lot. Can I ask what kind of softwares do you use to calculate?
Thanks for the compliment! I use R for all of the statistical calculations in my videos.
Thank you very much
Very helpful video, thank you!
This video is so f***ing good... Even helps me with my Masters Degree :D Always getting back to it
Why if the test statistic is one the left side of the distribution the real mean is on the left side of the distribution then the true mean is less than 0 and not more?
I'm not sure if you will reply, but I'm curious if there is any way to calculate this using some tool in Excel?
I realize that if you have two samples you can perform a t-test, but say if I wanted to apply these numbers given in this video and calculate the answer with excel?
The table in my book doesn't have enough variety in the degrees of freedom and such.
Excel has the function T.DIST, which finds areas under the t distribution. I've never used it.
Around 3:21, you say that since the sample size is large, the normality assumption is not that important. Can you please explain that?
Look into "Central Limit Theorem"
Thanks...
sir please answer me/which software u used to write on board
u saved my grade
Hy.
In this video : ruclips.net/video/T9nI6vhTU1Y/видео.html, at 10:42, you say that the area is the one BEYOND (to the right) the t-value.
But in this actual video at 05:42, you say it's the area BEFORE (to the left) the t-value.
How do you choose between "BEYOND" and "BEFORE" when it's two-sided test ?