This plot of power versus alternative values is

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This plot of power versus alternative values is called a power curve . The power curve and α together tell you how well the test performs.
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0.2 0.3 0.4 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 True Psychic Ability Probability of Detecting The Power Curve for this Test The Power Curve
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