Power calulation for hypothesis testing
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24. A researcher is evaluating the influence of a treatment µâ?¦ = 80, Ï? = 20. The researcher expects a 12 point treatment effect and plans to use a two-tailed hypothesis with n = .05
a. Compute the power of the test if the researcher uses a sample of n = 16 individuals.
b. Compute the power of the test if the researcher uses a sample of n = 25 individuals.
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