In a recent study on gender differences in education, a sample of 7 boys had a mean score of 18.8 ...

In a recent study on gender differences in education, a sample of 7 boys had a mean score of 18.8 and a standard deviation of 4.1 on a Standardized Math Test. A sample of 11 girls had a mean score of 19.7 and a standard deviation of 3.6 on the same test. What is the t-statistic for this data? (Use the sample of boys as Group 1.)