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 rates." This individual video is accessed by scrolling down to the "Individual Program Descriptions - 23. Inference for Proportions" and click the "VOD" icon at the top-right of the description.
Date Record Checked: 2004-03-09 00:00:00