A researcher aims to test a hypothesis that average LDL cholesterol level is greater among diabetic...
A researcher aims to test a hypothesis that average LDL cholesterol level is greater among diabetic adults that have HIV in Chicago compared to Chicago diabetic adults who don't have HIV. The average LDL cholesterol level among diabetic patients in Chicago who don't have HIV is 150 mg/dL. She is considering a design with a sample with 150 randomly chosen adult diabetic patients with HIV in chicago and a level of significance at 0.05. She wants to calculate the statistical power of the design.
What are the two missing information that the researcher needs to calculate the statistical power of this study design?
Homework Answers
Answer
Power formula include sample mean, population mean, standard deviation, sample size
we have population mean = 150 mg/dL
sample size n = 150
significance level = 0.05
sample mean and standard deviation are unknown, so we need these two data information in order to calculate the statistical power of this study design.
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