A statistician conducted an informal mail survey of several countries around the world. Among other things, the statistician wanted to gauge how the citizens of each country felt about immigration. Each person was asked a series of questions that produced a scale of 0 to 100. The higher the score, the more accepting the individual was of migrants. The data from Canada, Australia, and New Zealand were recorded. Is there sufficient evidence to conclude that the three Commonwealth nations differ in their acceptance of immigrants?