The Statistical Evaluations (Stat Eval) Report is a report combining information from the Shewhart Test and the Gap Test. For a given Screening Group, the report retrieves all records in which either of these tests failed and lists the information by Monitor ID and the date and time of the error.
The Shewhart Test Errors are printed only when daily (interval=7) data for a criteria pollutant fails the Shewhart test, a level-3 statistical test. The Shewhart test involves data for an entire month, and may use values both from transactions in the screening file and from the Daily File of the AIRS database. If no errors of this type occur the report is not printed.
When Gap Test Errors are retrieved it also lists the total Gap Count and the Above Gap Count and/or Slot Below Gap Count for that record.
The following are all of the fields that are retrieved on this report.
Monitor ID
Date Time
Error
Above Gap Cnt
Slot Below Gap Cnt
Total Gap Cnt
Note: The user may need to use the 'refresh' button on these forms to get the most up to the minute information on their jobs.