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This tutorial is intended to teach students how power in a one-sample Z-test is influenced by effect size, variability (population standard deviation), sample size, and significance level. WISE Power Tutorial can be used in a variety of settings including as a tutorial for an individual student, during a lab, and after a lecture. The applet embedded in the tutorial could be used during an in-class demonstration.
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Date Of Record Creation 2011-01-30 13:29:24
Date Of Record Release 2011-01-30 13:36:32
Date Last Modified 2011-01-30 13:36:32
Statistical Topic
Material Type
Author Name Dale Berger
Author Organization Claremont Graduate University
Technical Requirements Internet access and Java is required. Adobe Reader.
Comments The notation becomes confusing in the accompanying Power Calculation for the One-Sample Z-test applet. In particular, the authors change the symbol for effect size from "d" to "E". It might be less confusing to pick one of these letters and use it throughout.
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