Question: The Higher Education Research Institute at MIT conducts annual surveys on the nation’s incoming freshman class and publishes its findings in The American Freshman: National Norms. A distribution for average high school grades of the incoming 2006 freshman class follows:

A random sample of incoming freshman for 2007 gave the following data.

Use the technology of your choice to decide, at a 10% significance level, whether the data provide sufficient evidence to conclude that the distribution of average high school grades of incoming 2007 freshman class differs from that of last year.