Transcription of Power and Sample Size Determination
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Power and Sample Size Determination
Power and Sample size Determination Bret Hanlon and Bret Larget Department of Statistics University of Wisconsin Madison November 3 8, 2011. Power 1 / 31. Experimental Design To this point in the semester, we have largely focused on methods to analyze the data that we have with little regard to the decisions on how to gather the data. Design of Experiments is the area of statistics that examines plans on how to gather data to achieve good (or optimal) inference. Here, we will focus on the question of Sample size : I how large does a Sample need to be so that a confidence interval will be no wider than a given size ?
Power and Sample Size Determination Bret Hanlon and Bret Larget Department of Statistics University of Wisconsin|Madison November 3{8, 2011 Power 1 / 31
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