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Perfect! Thank you very much! Plain, explanatory and clear.

Thank you...going to do with my students in a couple of weeks

Best video for alpha and beta

Best explanation, thank you

Super clear. Thanks!

THE BEST!

Thank you! Excellent explanation

This is gold!

You are still awesome after 8 years.

Hello. Thanks for making this. In the future, perhaps you could avoid using undefined terms like "p hat." Or, simply define them before using them. I am trying to learn this stuff and then had to go elsewhere to find out what "p hat" is.

great video!!! love the animations

extremely informative, thank you!

Amazing explanation, thanks!

Thank you so much! This video is 👌

This video was just brilliant, the animations made that significant difference (mind the pun) between understanding the concept or getting lost in translation....well done great work here thanking you a million

This is so helpful! Thank you!

P hat would be the Test Statistic. Please define. Thanks.

it helps me a lot, thank you so much

Hi, thanks for your interest in the web apps posted on ArtofStats. I actually recently updated the Explore Quantitative Data web app (as well as the Explore Categorical Data web app) and many of the options you are looking for are now implemented (such as selecting labels for the groups or changing titles). For the categorical example, you might be better off selecting "Individual Observations" under the Data drop box and you can imply copy and paste your two columns from the Excel spreadsheet, without needing to count up the numbers in each of the categories. I have just started a you tube channel called ArtofStat where I will post videos demonstrating these apps. I will see what I can do about downloading tables, but this might not be straightforward.

very easy to understand alpha and beta. tq😉

I wish I had you as my Algebra 2 teacher this year!

I don't know who you are but I have my FSA tomorrow and thank you so much I understand algebra now!

Not in your Algebra 2 class but it helped me review for my state test exam tomorrow!

This is probably the best video I've seen for alpha, beta, and power for hypothesis tests !!!

thanks :)

Excellent reviews For #19-PART C , I have an answer of .6246..using both the Z-Scores and on the TI-84 when entering in normal cdf (3.2,3.6,3.5,.2) --- an ERROR on my part ???

thank you for posting this video so that AP Stat students everywhere can learn from you!

however we are in the 4th quadrant :-)

sin theta therefore is plus minus 3/5

However you could do cos theta= 4/5 or cos^2 theta = 16/25 using the identity cos^s theta plus sin^2 theta =1 plugging in cos^2 theta gives sin^2 is 9/25

I just realized this is a non calc sec so inverse functions are out of question.

No.1 should be done differently... :-)

Thank you so much

Thank you so much! Your review helped me tremendously for my AP Stats Midterm! :)