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Statistical Inference and Techniques -- Significance Testing Principles -- P-value

View Resource **Histogram Applet

This applet is designed to teach students how bin widths (or the number of bins) affect a histogram. A histogram of the time between Old Faithful eruptions is shown. Students can change the bin width by dragging the arrow underneath the bin width scale. The changes are observed in the structure of the histogram. An article and an alternate source for this applet can be found at http...
View Resource **Statistical Applets: P-Value of a Test of Significance

This applet is designed to help students visualize p-value by allowing them to set null and alternate hypotheses, population parameters, and sample statistics. It accompanies "Practice of Business Statistics," but can be used without this text.
View Resource Against All Odds: 23. Inference for Proportions

This free online video program "marks a transition in the series: from a focus on inference about the mean of a population to exploring inferences about a different kind of parameter, the proportion or percent of a population that has a certain characteristic. Students will observe the use of confidence intervals and tests for comparing proportions applied in government estimates of unemployment...
View Resource Attitudes Towards Statistics (ATS)

The 29-item attitudinal scale consists of two subscales: attitude toward the field of statistics (20 items) and attitude toward the course (9 items). Students are asked to respond to how they currently feel about a statement (i.e., "I feel that statistics will be useful to me in my profession") using a 1 (strongly disagree) to 5 (strongly agree) response scale.
View Resource Cartoon: Discarding Outliers

A cartoon to accompany a discussion of outliers and their posible underlying causes. Cartoon by John Landers ( based on an idea from Dennis Pearl (The Ohio State University). Free to use in the classroom and on course web sites.
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