Below Is a Description of a Research Situation Encountered in the Social

Short Answer

Below is a description of a research situation encountered in the social sciences. Based on the information provided, indicate the appropriate statistical procedure for testing the significance of differences or strength of correlation.
A social researcher is interested in studying whether social class influences life expectancy. The researcher divides social class into three categories: upper class, middle class, and lower class. Life expectancy is measured in years. Which statistical procedure would one apply to test for differences in life expectancy between social classes?