You sound like Dory in Finding Nemo trying to speak orca lol

2:08 starts to explain what a two-sample-difference distribution is, which is very helpful! thank you!

very informative! I like how you constantly describe the purpose of doing a particular step

Hello, I think you meant to say, the average age of students from Quebec is lower than that from outside Quebec as your alternative hypothesis. As you mention, you are conducting a u1

At 7:03, the squares are missing in the real number example. So, you're using just sigma and not sigma sqaured!

@fububalla

9 жыл бұрын

Robert Kirsten I'm freaking out cause I paused there too!! Doesn't that mean the z is incorrect? Shouldn't it be Z = - 3.10

@splch

7 жыл бұрын

almost...its's closer to -3.0983866769659335081434123198259196886663373642333

Squares are missing. Sigma1 and Sigma2 need to be squared. Correct values of z & p are -3.098 and 0.0019. Zc=-1.645 and conclusions remain correct. S. Roy Chowdhury, Delhi, India.

@theodoresweger4948

Жыл бұрын

I got the same thiing you are correct..

Thanks a lot it helped !

Some quite credible sources write the null hypothesis differently. Some are using the less- or greater- symbol along with the equal sign and some aren't (including this video). So, which one is actually correct? Thanks in advance for your kind answer.

1.25 playspeed helps so tremendously but great video

U r awesome

At 6:20 statement was wrong! Cause, denominator is not the "square root of the sum of standard error of sample 1 plus standard error of sample 2" , Actually it is equal to the "The square root of the sum of squares of standard errors of samples 1 and 2.

talk a little slower lol

Also the Z value is -1.645 not -1,645 ... you also cant use commas for decimal points

@emilyroberts3832

9 жыл бұрын

They use commas instead of periods in French speaking countries; look at the pricing on items sold in euros, they all have commas, decimals are not universal.

@surihapsari6595

3 жыл бұрын

The same as in Indonesia then. Fyi...

@Brian_1991X

3 жыл бұрын

Thanks guys. Looking back 6yrs later . Lmao I genuinely didn’t know 🙃