Enrichment Opportunity - A Six Sigma Exercise

You may learn more by succinctly but astutely addressing by email to me by the end of Week 7 the following exercise.  

Exercise.  Acme (NC) has long used a central telephone/Internet customer support center based in Jamaica.  Data collected by the center show that last year, all but five (5) of every 100,000 calls/accesses received by the center were satisfactorily (to the customer) handled within the targeted time of two hours.

1. What is the highest Sigma rating that the Jamaica customer support center can claim?  Show how you reached this rating.
2. After Acme Mexico City (AMC) begins operations next year, should the Jamaica center support AMC's customers?  Why or why not?