Using the family lung function data described in Appendix A define a new variable RATIO = FEV1/FVC for the fathers. What is the correlation between RATIO and FEV1? Between RATIO and FVC? Perform a...

Using the family lung function data described in Appendix A define a new variable RATIO = FEV1/FVC for the fathers. What is the correlation between RATIO and FEV1? Between RATIO and FVC? Perform a principal components analysis on FEV1 and FVC, plotting the results. Perform a principal components analysis on FEV1, FVC, and RATIO. Discuss the results.