AP Stats Test Quick Review: Significance Testing

This is a quick video covering the major idea of a significance test for means and proportions.

[frenchfrie]

I just watched all 14 of these videos and you sir have made me more confident than any amount of hours I spent in my online class learning this. Thank you. My test starts in 11 hours, so wish me luck on that 5!

[bfbunny]

Taking ap stats tomorrow, your video is saving my life. Great explanation of so much content in such short time

[sebassmeinking]

You deserve more recognition, these videos are outstanding

[Nic_]

commenting again because i CANNOT OVERSTATE how amazing these videos are. I've always gotten really good grades in math, but watching literally 2 or 3 hours worth of your videos has given me more understanding of actual concepts than I've ever had. Undoubtedly, you are the best teacher I have ever come across. literal lifesaver for my AP exam, and for my future math classes. I've never enjoyed math until the last few days, when I started watching your videos.

[mattiemcgov]

Thank you so much for helping me refresh on the content from the year. I've been gone from school way too long and would probably get a 2 on the exam without your videos :)

[alejandramartinez]

I just watched your whole AP review playlist and I can not thank you enough. You are such a great teacher and helped so much! idk what i would've done!! Thank you!!

[tayloraguinaldo]

i had to come back to comment after my ap test to say thank you for helping me so much 🙏🏽 your review videos are so great and helped me learn beyond how to do stats problems but understand why the answer works!! test felt so easy, best ap stats review out there!

[loagn]

Im taking my ap stats exam tomorrow, and man, these videos are so helpful for review. Thank you

[kaleokawamura]

thank you sir. your videos are amazing and ive learned more in these <1hr vids than from these zoom lectures. ill make sure i spread the word to my friends in my class

[odpezpf]

This man is the GOAT, keep killin the game Mike

[soqudain]

Thank you for all of these videos! They’ve been so helpful as I cram for the AP test!

[racheljeanquinn]

thank you, your videos are very straightforward and helpful :)

[leonelbaskin]

For the One sample t test problem at 20:32, i think the alternative should be mew is <128 since if the mew was at least 128 or over 128, the plant would be in compliance with the regulation. You had the alternative down as mew was not equal to 128 which i think is wrong because it accounts for values above 128, which it shouldn't since those are in compliance with the regulation. Let me know if im right, thanks! Your videos are super helpful!

[emmarosas]

A couple minutes before my test, just wanted to thank you.

[jacobjensen]

So for the 2 proportion z-interval, when are you supposed to pool? Is it that you don't pool for confidence intervals but do/should for the actual test?

[jacobjensen]

Also, when it comes to determining degrees of freedom for t-tests, when you plug the data into a calculator's t-test function, the degrees of freedom are less than those calculated and they're decimals. I understand that one is a conservative estimate and the other is the precise value. On the AP test, is there one we should use over the other?

[michaellewis]

why do much memorization how we derive stuff.

[gokartish]

guys guys guy, what the hell is 2019 stats exam boys know