An educational testing service conducted studies to look at differences between the scored of male and female students on the Scholastic Aptitude Test (SAT). For a sample of female students, the standard deviation of the test scores on the mathematical portion of the SAT was 72.
For a sample of male students, the standard deviation of the test scores on the mathematical portion the SAT was 68. Assume that the standard deviations were based on random samples of 21 males and 20 females.
Do the data indicate a difference between the variances of female and male students' scores on the verbal portion of the SAT? (a = 0.10)
I want to say yes, because the females scored higher, but I didn't know how to explain it more...I think I have to show equations or something. Thanks for any tips!!
For a sample of male students, the standard deviation of the test scores on the mathematical portion the SAT was 68. Assume that the standard deviations were based on random samples of 21 males and 20 females.
Do the data indicate a difference between the variances of female and male students' scores on the verbal portion of the SAT? (a = 0.10)
I want to say yes, because the females scored higher, but I didn't know how to explain it more...I think I have to show equations or something. Thanks for any tips!!