Hypothesis Tests about a Population Mean

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In this Demonstration, the test statistic is marked in red, the -value is the purple area, the black line marks the boundary of the rejection region when the significance level is , and the blue area is equal to . Samples are drawn from a uniformly distributed population with mean zero and variance controlled by the slider.

Contributed by: Chris Boucher (March 2011)
Open content licensed under CC BY-NC-SA


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