Well, it appears that angelicaz sent this PM to several members. Welcome to the Cove, angelicaz.
These are basically the "Exact" confidence intervals of a Binomial Distribution. I won't be able to explain the whole statistics behind this here, but you should be able to refer to any good book on basic statistics to find out more about exact confidence intervals.
You will find an on-line calculator for Exact Binomial and Poisson Confidence Intervals at:
The program code can also be downloaded as an Excel file from this site.
Also, check out the file att-gage.xls at:
Attribute Gage R&R Form - Long Version - AIAG's MSA Manual
Hope this helps.