To help high school students pick a major, a company called PayScale surveys graduates of a variety of programs. In one such survey, graduates of the following degree programs were asked what their...

To help high school students pick a major, a company called PayScale surveys graduates of a variety of programs. In one such survey, graduates of the following degree programs were asked what their annual salaries were after working at least 10 years in the field. Elementary Education Human Development Social Work Special Education Can we infer that there are differences in salary between the four college degrees?