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

3.3	3.5	4.5	4.0	4.3
3.9	3.8	4.1	4.2	3.7

1. 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.