How is it that a free eight minute KZfaq video accomplishes something that a week of lecture and an entire chapter of a three hundred dollar textbook couldn't...thank you,truly.

You saved me on the first test!!! If only it would have been explained this simply in class!!

Thank you very much! Excellent and complete explanation, I am grateful for the details mentioned at every step. You saved my life :)

Your video tutorials are great.

Thank you. It's hard to find instructions online about how to find the F* critical value for 2-tailed tests. This video helps a lot.

thank so much for your outstanding explanations, simply remarkable

I'm not a native speaker but you taught very well and clear, got it, thanks!

I love your videos professor!

Thank you for submitting this video!

Thank you! Clear explanation.

Thanks a million. This really helped!

the critical value is 4.03 not 4.09

Very well explained. Clear voice and concise content. The only thing I noticed is that you did not explain why the variance in two-tailed test should be highest on top and lowest on the bottom. Also why it was opposite for one-tail test. :)

I have got my quiz tomorrow and you saved me Taylor!! ^_^ Cheers . ..

thank god ...by looking at the comment section i felt better i looked at my work-out book twice before acknowledging it must be a mistake ..critical value of the test is 4.03 not 4.09

being a teacher is the right career for you,kudos others are teachers but you wonder how the hell did they become teachers

you are the best

do you have to double the p value of an anova result because we use a two tailed F test ?

Nicely described

what if degree of freedoms are differentr for two tailed test and then we have to find lower critical value

Thank you ma’am

thank you :)

When you say choose the value that's closer, does that mean not to use infinity? So you dont use it even if the n's are > 1000

thank u.

thank you .......:)

How did you calculate significance as 0.05 ? Please help me out with this.

What is s in that table of salt contents?

but why would we need to know if one distribution has higher variance than the other? Could someone explain please?

I think the symbols that you are using for Population Variances are instead used for Population Standard Deviations. Right?

I did using R and got this for the exercise problem. Can you please tell what is wrong? fcalc1

so i seem to be in a bit of a predicament- my alpha value is 0.1, what do i do to find my critical values?

Why do you use a comma instead of a dot or decimal point?

good

How did the critical value magically change from 4.03 to 4.09?

I didn't understand.. Probably the method is different or approach is different but it is contradicting to what I've learnt.

🥧

Good effort but this is WRONG. First and foremost, there is no such a thing as two-tailed test for Chi-Squared and F distribution. When mathematical transformation is being applied, both sides of the normal distribution curve has been already considered within the Chi-Squared and F distribution itself. As such, no negatives values are observable and there goes the symmetrical shape of the distribution.

I hate statistics. So much