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Statistical Topic is Statistical Inference and Techniques -- Significance Testing Principles -- Power
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View Resource **Power Tutorial

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...
View Resource Quote: Acton on Power

"Power tends to corrupt, and absolute power corrupts absolutely." is a famous quote of English historian Sir John Dalberg-Acton (1834 - 1902). Of course, Lord Acton was not referring to...
View Resource Star Library: Simulating Size and Power Using a 10-Sided Die

This group activity illustrates the concepts of size and power of a test through simulation. Students simulate binomial data by repeatedly rolling a ten-sided die, and they use their simulated data...
View Resource Star Library: What is the Significance of a Kiss?

This article describes an interactive activity illustrating general properties of hypothesis testing and hypothesis tests for proportions. Students generate, collect, and analyze data. Through...
View Resource HyperStat Online: Ch. 11, Power

This site defines power and explains what factors may affect it, such as significance level, sample size and variance.
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