Standard deviation, standard error of the mean, & confidence intervals

[@mehaabdal-majied8881]

This’s the best explanation and demonstration of these terms I ever heard. Thank you thank you thank you I was suffering for 3 months to understand it 😂😂

[@mohammedkota7529]

thank you man

[@matinpf73]

but we calculate standard error on a set of means, not actual values, right?

[@MoonLight-nc4fi]

Dear Dr. Vahid. Thanks so much for your generous time and support. Could you please also explain CSEM and it’s importance for the test?

[@VahidAryadoust]

it is a topic for another video, but you can read this: files.eric.ed.gov/fulltext/ED555593.pdf

[@MsNancy1212]

You still haven't told me how to find the how to get standard deviation The given is 95% I found my mean was 8 (n -1) which is 7. I subtracted my mean from each person and then squared them after that I Added all the squared together now what? Help!!!

[@wesdiamond4828]

It was so helpful. Thank you

[@legiegrieve99]

great explanation