Hypothesis Test: Difference in Population Means, Standard Deviations Unknown

[@patrickjmt]

This is a fundamental topic in statistics and one of the topics those of you taking the AP test will see!

[@ravikiran9850]

I always thankful to you sir.Long back ago i watched your videos to clear my subject.Now i am working as aerospace engineer.

[@Randomlogy]

hey sir just came to say thank you although now i am Chartered Accountant and Don't practice math anymore. but back in class 12th i used to watch your videos to learn calculus.i was top performer in math and my math score helped me secured 2nd position in whole province in board exam. today while traveling in bus, i refered your channel to my Younger cousin. it's just nostalgia. thank you . hope see you in future.

[@patrickjmt]

hahah, that is such a nice story :) thanks for sharing, it makes me feel better

[@nikey8966]

What teaching board is this ?

[@2468hello24689]

one semester late oh well.

[@patrickjmt]

can't win 'em all :)