Question

Your friend was running late to lab meeting and only had time to briefly skim the two scientific papers they were meant to discuss. Both papers evaluated the extent to which Allopurinol reduced uric acid build-up, but did so in different populations. In the lab meeting, your friend was really curious as to why the standard errors differed wildly between studies and assumed it had something to do with different features of these populations. Provide a simpler explanation that they should look into first.

Answer 1

Standard error =

Standard error depends up on population standard deviation and sample size n.

So first he need to check whether there is large difference between population standard deviation ​​​​​​​ and sample size n.