identify the parameters a researcher would be interested in

identify the parameters a researcher would be interested in conducting inference on. A professor claims that 70 percent of college of business graduates earn more than 45,000 per year. In a random sample of 300 graduates, 195 earned more than 45,000. a. u1-u2(1=business graduate and 2=non business graduate) b. P c. U d. p1-p2(1=business graduate and 2= non business graduate)

Solution

parameters are proportions so the symbols are

p1-p2(1=business graduate and 2= non business graduate)