In this lesson, we are going to talk more in-depth about type 1 and type 2 errors. We need to know about these errors, but we also need to know when we make them in relationship to hypothesis testing. So far weve only used t test as our hypothesis test. We have shown these errors and their relationship to hypothesis testing before as a box, but frequently in hypothesis testing, we draw distributions. We are going to show how the box and the distributions fit together because these two things are actually related to each other. They are just two different ways of showing you that same concept.
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.
This book provides a clear and methodical approach to essential statistical procedures. It clearly explains the basic concepts and procedures of descriptive and inferential statistical analysis. This book features a new emphasis on expressions involving sums of squares and degrees of freedom as well as a stronger stress on the importance of variability.