Purpose
This FM returns the test, item and performance unit statisticalinformation accepting the test-type id as the input parameter.

Selection
The user can select a single test type-id or select the check box selectall tests for the statistical analysis of all the test types available.The user can also select the desired event location if necessary.

Output
the statisitical information i.e standard deviation and mean of item,test and pu along with the testid, language,form,pu name, itemdescription, item type, item max points, item sum.