Posted by Alex on Sunday, March 24, 2013 at 1:31am.
In a recent study on gender differences in education, a sample of 7 boys had a mean score of 18.5 and a standard deviation of 4.1 on a Standardized Math Test. A sample of 11 girls had a mean score of 19.9 and a standard deviation of 3.6 on the same test. What is the tstatistic for this data? (Use the sample of boys as Group 1.)

statistics  MathGuru, Sunday, March 24, 2013 at 8:10pm
Try a twosample independent groups ttest. Use the data below to calculate your tstatistic.
Group 1 (Boys)
n = 7
mean = 18.5
sd = 4.1
Group 2 (Girls)
n = 11
mean = 19.9
sd = 3.6
I'll let you take it from here.