Erin Blankenship

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Department of Statistics
University of Nebraska--Lincoln

Materials Contributed through SERC-hosted Projects

Activity

Simulating Size and Power Using a 10-Sided Die part of CAUSE Teaching Methods:Teaching with Data Simulations:Examples
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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