13-11. A human resources director feels that workers with at least one year of college will score above 75 points on a certain 100 point test. A group of n = 30 workers take the test and generate the following scores:

85 88 89 76 91 90 77 68 74 88 87 73 72 77 89 95 85 79 77 92 93 97 96 98 70 73 75 77 90 99 Is the director correct in his speculation? Use α = 0.05 and perform the Wilcoxon large-sample signed rank test.