(Standard error of sample means) SEm = SD/√n
Calculate and compare.
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.)
5 answers
100
.35 is what i got. not sure if its right but seems more realistic to 100
actually both answers are still wrong but i hope this elimination of answers helps
i'm trying .07425
0 answers