In Born Together – Reared Apart: The Landmark Minnesota Twin Study (2012), Nancy Segal discusses the efforts of research psychologists at the University of Minnesota to understand similarities and differences between twins by studying sets of twins who were raised separately. Below are critical reading SAT scores for several pairs of identical twins (twins who share all of their genes), one of whom was raised in a family with no other children (no siblings) and one of whom was raised in a family with other children (with siblings). What is the mean difference between the critical reading SAT scores for the twins raised with no siblings and the twins raised with siblings? Provide a 90% confidence interval estimate of the mean difference between the critical reading SAT scores for the twins raised with no siblings and the twins raised with siblings Conduct a hypothesis test of equality of the critical reading SAT scores for the twins raised with no siblings and the twins raised with siblings at a = .01. What is your conclusion? No Siblings With Siblings Name SAT Score Name SAT Score Bob 440 Donald 420 Matthew 610 Ronald 540 Shannon 590 Kedriana 630 Tyler 390 Kevin 430 Michelle 410 Erin 460 Darius 430 Michael 490 Wilhelmina 510 Josephine 460 Donna 620 Jasmine 540 Drew 510 Kraig 460 Lucinda 680 Bernadette 650 Barry 580 Larry 450 Julie 610 Jennifer 640 Hannah 510 Diedra 460 Roger 630 Latishia 580 Garrett 570 Bart 490 Roger 630 Kara 640 Nancy 530 Rachel 560 Sam 590 Joey 610 Simon 500 Drew 520 Megan 610 Annie 640

In Born Together – Reared Apart: The Landmark Minnesota Twin Study (2012), Nancy Segal discusses the efforts of research psychologists at the University of Minnesota to understand similarities and...

Jun 10, 2022