in a recent study on gender differences in education, a sample of 1' boys had a mean score of 15.1 and a standard deviation of 4.1 on a Standardized Math Test. A sample of 11 girls had a mean score of 2:12 and a standard deviation of 3.5 on the same test. What is the t-statistic for this data? [Use the sample of boys as Group 1.}