Suppose a real estate agent wants to understand home pricing in his region more clearly using a random sample. Which sample would provide the lowest margin of error with the same level of confidence?
Sample A has a low sample standard deviation and a large sample size.
Sample B has a low sample standard deviation and a small sample size.
Sample C has a high sample standard deviation and a large sample mean.
Sample D has a low sample standard deviation and a low sample mean.
A) sample D
B) sample B
C) sample C
D) sample A