Links: This video: https://youtu.be/2fz0STTfIIU Channel: bit.ly/2dD5H5f This is the 4th of 5 videos in a playlist that describes 4 concepts at the heart of Inferential Statistics and how they work together. The first 3 were
Here are the 5 Keys to Understanding the concept of Test Statistic: And here is a summary of the 4 Test Statistics and how they are used: And here is a 1-page summary of the Test Statistic F:
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Links: channel, this video This is the 3rd of 5 videos in a playlist that describes 4 concepts at the heart of Inferential Statistics and how they work together. The first two were on the concept of p, the p-value and Alpha, the Significance Level. The 4th will be on Test Statistic. The 5th video will concentrate on how they all interrelate and work together. Here are the 3 Keys to Understanding (KtUs) the concept of Critical Value: And here are two concept flow diagrams which help explain the 1st KTU: And here is a Compare and Contrast Table which helps explain how p > α is the same as test statistic value < critical value.
Links: channel , this video This is the 2nd of 5 videos in a playlist that describes 4 concepts central to Inferential Statistics and how they work together. The first video was on the concept of p, the p-value and the others will be Critical Value and Test Statistic. The 5th video will concentrate on how they all interrelate and work together. Here are the 5 Keys to Understanding the concept of Alpha, the Significance level. And here's an example of a concept flow diagram in the video:
This new video: https://youtu.be/vyX4m89VkyI
YouTube Channel for this book: http://bit.ly/2dD5H5f This is the first of 5 videos planned for a playlist on 4 central concepts in Inferential Statistics:
For many people, "Fail to Reject the Null Hypothesis" is one of the most confusing concepts in statistics. That's not surprising, because that phrase is a triple negative. It's like saying, "I don't not have no money". This new video uses a methodical approach and creative graphics to dissect the concept and make it understandable and "rememberable".
This is the 5th and final video in the Hypothesis Testing playlist on my You Tube channel. See the Videos page on this website for what's next. A new video Reject the Null Hypothesis is now available. This is the 4th video to be uploaded to my channel on You Tube. It will be added to the playlist for Hypothesis Testing. The 5th and final video in the playlist (Fail to Reject the Null Hypothesis) will be uploaded in 2 weeks. For many people, the two possible outcomes of a Hypothesis Test:
In both videos, we use a marriage proposal scenario -- among other things -- to illustrate the concept. The woman responds in the language of a statistician: The Videos page on this website has the latest status of available and planned videos.
Hypothesis Testing is one of the two main methods of Inferential Statistics (statistics involving Samples). I've just uploaded a new video -- on Hypothesis Testing -- to my YouTube channel Statistics from A to Z -- Confusing Concepts Clarified. In the last two weeks, two videos on key concepts within Hypothesis Testing, the Null Hypothesis and the Alternative Hypothesis, were uploaded to the channel. In the coming weeks, two more videos will be uploaded to complete the playlist on Hypothesis Testing. These are Reject the Null Hypothesis and Fail to Reject the Null Hypothesis. Last week I uploaded a video on the Null Hypothesis to the YouTube channel. This video on the Alternative Hypothesis, is the 2nd of 5 on the larger concept of Hypothesis Testing. There is some redundancy between these first two, because one can't fully discuss the Null Hypothesis without addressing the Alternative Hypothesis and vice versa. And redundancy and repetition are helpful when you're trying to understand a concept. The Alternative Hypothesis is one of those statistics concepts on which experts disagree. Many include it as part of their recommended approach to Hypothesis Testing. Others are strongly opposed to its use. I think it's very useful for two reasons:
This video, Null Hypothesis, is the first of hopefully many videos based on content from the book, Statistics from A to Z -- Confusing Concepts Clarified. They will be on the YouTube channel which has the same name as the book here's a link http://bit.ly/2dD5H5f. Please subscribe to the channel to be notified when new videos are uploaded. You can also see on the Videos page on this website not only which videos are currently available, but also which are planned to be uploaded next. As you can see from the graphic above, the videos, like the articles in the book, usually start with 4 or 5 Keys to Understanding (KTUs), so that you can see on one page the key things you need to know to understand the concept. The rest of the article or video goes into detailed explanations of each KTU. This little cartoon is used in support of KTU #2. I've found it's usually best to try to phrase the Null Hypothesis as either no difference, no change, or no effect.
However, it's even clearer to avoid the use of words completely, as KTU #3 explains. |
AuthorAndrew A. (Andy) Jawlik is the author of the book, Statistics from A to Z -- Confusing Concepts Clarified, published by Wiley. Archives
March 2021
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