A Research Group Conducted a Study to Compare the Levels

A research group conducted a study to compare the levels of creatine kinase-MB (CK-MB) between type 2 diabetes mellitus (T2DM) patients given statin therapy.  Participants were divided into 4 groups based on treatment.  Groups I, II, and III consisted of T2DM patients who had been given statin therapy (atorvastatin, simvastatin, rosuvastatin, respectively) for at least 6 months.  Group IV consisted of T2DM patients who had not been given statin therapy.  Which of the following statistical tests is most appropriate to compare the CK-MB levels between Groups I, II, III, and IV in this study?

A) Analysis of variance
B) Chi-square test
C) Independent t-test
D) Paired t-test
E) Correlation analysis

Correct Answer:

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