(2) From the group of borrowers identified under paragraph (d)(1) of this section, the data manager identifies a sample that is large enough to derive an estimate, acceptable at a 95 percent confidence level with a plus or minus 5 percent confidence interval, for use in determining the number of borrowers who should be excluded from the calculation of the program cohort default rate due to improper loan servicing or collection. (federalregister.gov)
Adkins received 341 completed surveys, enough to produce a 95 percent confidence level in the results. (lawsitesblog.com)
The sampling error is plus or minus 3 percentage points at the 95 percent confidence level, whatever that means. (fieryfoodscentral.com)