22. A study considers whether the mean score on a college entrance exam for students in 1996 is any different from the mean score of 500 for students who took the same cxam in 1966. Let / represent the mean score for all students who took the exam in 1996. Test 11 = 500 against H. 500, if for a nationwide random sample of 10.000 students who took the exam in 1996. = 497 and s = 100. Show that the result is highly significant statistically, but not practically significant