Power

 [Back to Statistics Contents]
For a statistician, the power of a test is the probability that the test will reject the hypothesis tested when a specific alternative hypothesis is true. To calculate the power of a given test it is necessary to specify alpha (the probability that the test will lead to the rejection of the hypothesis tested when that hypothesis is true) and to specify a specific alternative hypothesis.

See Also:
  • Alpha
    		•
  • Beta
    		•
  • Statistical Test
    		•
  • Statistical Significance
    		•