Scientists wanted to know if having additional siblings had an effect on cognitive development of twins.They collected independent random samples of twins with and without siblings and measured the SAT score of the oldest twin.Can the scientist conclude with 95% confidence that there is a difference between the two groups?

SAT ScoreNo Siblings 440 610 590 390 410 430 510 620 510 680 580 610 510 630 570 630 530 590 500 610

SAT Score With Siblings 420 540 630 430 460 490 460 540 460 650 450 640 460 580 490 640 560 610 520 640

I'm thinking I should use a 2-sample F test. Am I on the right track?