b. What is the power of the test if th a 10-point effect? 20. A researcher is investigating the effectiveness of a new medication for lowering blood pressure for individuals with systolic pressure greater than 140. For this population, systolic scores average u = 160 with a standard deviation of o = 20, and the scores 21 form a normal-shaped distribution. The researcher plans to select a sample of n = 25 individuals, and measure their systolic blood pressure after thev teke the medication for 60 days. If the researcher enes a two-tailed test with a = .05, a. What is the power of the test if the medication has a 5-point effect?

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