Question: Brain Volumes of Twins Listed below are brain volumes cm3
Brain Volumes of Twins Listed below are brain volumes (cm3) of twins listed in Data Set 6 of Appendix B. Construct a 99% confidence interval estimate of the mean of the differences between volumes for the first-born and the second-born twins. What does the confidence interval suggest?
Assume that the paired sample data are simple random samples and that the differences have a distribution that is approximately normal.
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