This page calculates either estimates of sample size or power for differences in proportions. The program allows for unequal sample size allocation between the two groups.
Submitting your spotlight presentation from USCOTS 2005 to CAUSEweb is an easy process, and you are in a prime position to submit your work! What better way to have your work showcased than in a peer-reviewed repository of contributions to statistics education? This Webinar from January 2006 provided an opportunity to talk about how to prepare your USCOTS spotlight for submission to CAUSEweb and to discuss the benefits of submission.
This recording of a web seminar (webinar) provides a tour of StatCrunch. StatCrunch (www.statcrunch.com) is a Web-based data analysis package. StatCrunch has all of the routines required for introductory statistics and many more. The software also offers pedagogical features such as interactive graphics. Many of these capabilities are discussed and demonstrated by StatCrunch developer Webster West.
It is easy to lie with statistics, but it is easier to lie without them. Quote attriuted to Frederick Mosteller (1916 - 2006)
Statistician: A man who believes figures don't lie, but admits that under analysis some of them won't stand up either. A quote from "Esar's Comic Dictionary" (Harvest House, 1943) by American humorist Evan Esar (pen name for Esar Levine).