Is there a significant difference in the level of community service participation between college and high school graduates? According to the 2010 GSS, 38% of 160 college graduates reported volunteering in the previous month compared with 29% of 210 high school graduates.
a. What is the research hypothesis? Should you conduct a one- or a two-tailed test? Why?
b. Present the five-step model, testing your hypothesis at the .05 level. What do you conclude?