A study measures a patients’s serum cholesterol before and after a new lipid lowering therapy has been given.What type of significance test should be used to analyze the data?

A. Paired t test

B. Student t test

C. Chi square test

D. Pearson's coefficient

Correct Answer: Paired t test

Description: Ref:Park's Textbook of Preventive and Social Medicine 25th Ed

Category: Social & Preventive Medicine

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