The airline company Skyology Inc. selected a small group of three customers, whom we will call A, B, and C. The
customers were asked to rate their experience on a scale of 1 to 10, where a rating of 1 means "very poor" and 10
means "very good". Here are the results.

Customer Rating
A
6
7
8
B
C

Consider these three customers to be a population. (The population mean of their ratings is μ = 7.00 and the populatic
standard deviation of their ratings is 0 = 0.82.)