Problem Set 1 - You are assessing the degree to which children engage in externalized problem behaviors in kindergarten. The scores range on a scale from 1 to 12, with higher scores indicating greater externalized issues. You have received data classroom and your goal is to see if there are differences in scores between boys and girls. You have been provided data on 20 students, 10 are boys and 10 are girls. Please use the following data to calculate the independent t-value and to determine whether these differences are significant.

Boys	Girls
9	6
10	5
12	7
9	5
8	9
12	9
12	7
11	7
10	5
8	7