The following values represent the population of home mortgage interest rates (in percents) being charged by the banks in a particular city:

3.33.54.54.04.3

3.93.84.14.23.7

Given this information, what is the most extreme amount of sampling error possible if a random sample of n = 3 banks is surveyed and the mean loan rate is calculated?

a.About -0.40 percent.

b.About 0.13 percent.

c.About 0.40 percent.

d.Can't be determined without more information.