This resource explains the t-distribution and hypothesis testing (informally) using an example on laptop quality.
This PowerPoint presentation is an introduction to two-way tables and various related probabilites. The original presentation is available for download.
This article describes an activity that illustrates contingency table (two-way table) analysis. Students use contingency tables to analyze the ?unusual episode? (the sinking of the ocean liner Tit...
In this free online video program, students will learn that "causation is only one of many possible explanations for an observed association. This program defines the concepts of common response and...
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