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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 to estimate the size of a binomial test. They carry out further simulations to estimate the power of the test. After pooling their data with that of other groups, they construct a power curve. A theoretical power curve is also constructed, and the students discuss why there are differences between the expected and estimated curves. Key words: Power, size, hypothesis testing, binomial distribution
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Date Of Record Creation 2005-05-12 14:49:00
Date Last Modified 2005-05-13 13:10:00
Date Of Record Release 2005-05-12 14:49:00
Email Address,
Date Issued 2001
Resource Type
Typical Learning Time 75 minutes
Author Name Erin E. Blankenship and Linda J. Young
Author Organization University of Nebraska-Lincoln
Material Type
Statistical Topic
Intended User Role
Math Level

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