This is a nice book that introduces mathematical statistical techniques to model various data sets. Readers unfamiliar with this book can see what others have said here.
To learn this material as well as possible I worked through some of the book's problems and exercises and wrote up my
solutions and put them in book form. The R scripts used in the solutions for the various chapters are
given below. The solution manual has detailed explanations of the R codes below and further explanations
of the questions asked in the end of chapter exercises. Note that this solution manual is for the 3rd edition of
the textbook. There are are large number of overlapping problems between the different editions of the textbook
so these notes should help if you have an earlier version of the textbook.
I've only had time to work some of the problems in chapter 12. If I get more time I'd love to work more problems. You can find the solutions I have done here.