Notes and Considerations
The problem statement is given in attachment "Barrentine Chap 7 excerpt.pdf".
Data Set
See the file "Barrentine_Chap_7.xls" under Data Sets Concepts for R&R Studies (Barrentine). (link)
Analysis or Script File
See attached file "GRR Barrentine.stw".
Also, there is an example of the problem that was worked "by hand". See attachment "Barrentine Model - EMS - hand calc".