Suppose you are trying to determine if the population mean income of customers who live in two different regions (regions A and B) are the same or different. You take a sample from each region and find that the mean of the sample of customers from region A is $32,000 while the sample mean of region B is $36,000.

What can you conclude about the population mean incomes of the two regions?

Conclude that the population means are different because the sample means are different.
You cannot make a conclusion about the population means based only on the sample means. You need to conduct a statistical test.