You think WSSU graduates make more money than your average American. You take a sample of 36 incomes of WSSU graduates and they average $68,000 per year. It is known that Americans average $64,000 income per year with a standard deviation of $10,000. Answer the following questions and show your work. a. What is the null hypothesis? What is the research hypothesis? b. What type of statistical test do you conduct? c. Set alpha to .05 and calculate this test. Show all calculations. d. State your conclusion. Edit View Insert Format Tools Table