# In Born together-Reared apart: the Landmark Minnesota twin study (2012), Nancy Segal discusses the efforts of research

## Question:

a. What is the mean difference between the critical reading SAT scores for the twins raised with no siblings and the twins raised with siblings?

b. 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.

c. 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?

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**Related Book For**

## Statistics For Business & Economics

**ISBN:** 9781305585317

13th Edition

**Authors:** David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran