Exercise: Comparing means, 2

Question 2. What can we conclude from these tests?

Suggested answer

We can conclude that there is good evidence that in group A creatinine fell between the start of treatment and the sixth month of follow-up, and between six months before treatment and the sixth month of follow-up. There is no evidence for any fall in creatinine in group B. We cannot conclude that creatinine did not fall in group B, or that groups A and B differ.

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