Asked by j

The standard deviation of a sample taken from population A is 17.6 for a sample of 25. The standard deviation of a sample taken from population B is 21.2 for a sample of 30.
The standard deviation of the sample mean differences is_____. (Round your answer to the nearest hundredth.)
Answered by PsyDAG
(Standard error of sample means) SEm = SD/√n

Calculate and compare.
Answered by Anonymous
100
Answered by Anonymous
.35 is what i got. not sure if its right but seems more realistic to 100
Answered by Anonymous
actually both answers are still wrong but i hope this elimination of answers helps
Answered by Anonymous
i'm trying .07425
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