Solved: ?A researcher is evaluating the influence of a treatment using a sample selected
Chapter 8, Problem 19(choose chapter or problem)
A researcher is evaluating the influence of a treatment using a sample selected from a normally distributed population with a mean of \(\mu = 40\) and a standard deviation of \(\sigma = 12\). The researcher expects a 6-point treatment effect and plans to use a two-tailed hypothesis test with \(\alpha = .05\).
(a) Compute the power of the test if the researcher uses a sample of n = 9 individuals. (See Example 8.6.)
(b) Compute the power of the test if the researcher uses a sample of n = 16 individuals.
Text Transcription:
mu=40
sigma=12
alpha=.05
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