Analyze the following data from a survey of employees with two different levels of education. In 2008, the median salary earned by someone with a bachelor’s degree, working full-time year-round, was $55,700 per year, which was $21,900 more than a high school graduate’s annual earnings. Also, in 2008, about 58% of college graduates and individuals with some college education reported being very satisfied with their jobs, compared to 50% of high school graduates and 40% of individuals without a high school diploma.
What statement is the best generalization to represent this data?