12-12. Ten pairs of twins of a different sex made the following scores on a specialized dexterity test:

Female: 92, 83, 95, 96, 85, 61, 76, 80, 92, 87 Male: 90, 93, 80, 86, 71, 91, 80, 70, 80, 81 Is there any reason to believe that the female will generally make the higher average score? Use α = 0.05.