What Is the Power of a Statistical Test? What Factors

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The Answer is 1- â defines the probability that an investigator will correctly reject the null hypothesis when it is false,and this probability is called the power of the statistical test.The power of the statistical test is influenced by three factors.The alpha level directly affects the power of the statistical test,with more conservative alpha levels yielding less powerful tests,everything else being equal.The power of the statistical test is also influenced by the sample size:The larger the sample size,the more powerful the statistical test will be,everything else being equal.Finally,power is influenced by how discrepant the population mean is from the value of the population mean specified in the null hypothesis.The larger the discrepancy,the more powerful the statistical test will be,everything else being equal.

What Is the Power of a Statistical Test? What Factors

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