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March 25, 2017

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20. Explain how the power of a hypothesis test is
influenced by each of the following. Assume that all
other factors are held constant.
a. Increasing the alpha level from .01 to .05.
b. Changing from a one-tailed test to a two-tailed test.

  • statistics - ,

    Increasing alpha from .01 to .05 increases the power of the test. The higher the level, the more powerful the test.

    If the test is one-tailed, the test will be more powerful because one is less likely to miss a statistically significant test if the predicted direction is accurate.

    I hope this helps.

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