By Craig Lazarski, Cary Academy There are many concepts associated with hypothesis testing, but it all comes down to variation. How unusual is the variation we observe in a sample? Students can often lose sight of this basic idea once they have learned the various procedures introduced in an introductory statistics course. Further, they may blindly follow the procedure … [Read more...] about Developing the Theory of Hypothesis Testing: An Exploration
Type II Error
What Is Power?
By Angela L.E. Walmsley and Michael C. Brown, Concordia University Wisconsin For many teachers of introductory statistics, power is a concept that is often not used. In many cases, it’s avoided altogether. In fact, many Advanced Placement (AP) teachers stay away from the topic when they teach tests of significance, according to Floyd Bullard in “Power in Tests of … [Read more...] about What Is Power?