BQS OBSP Determination:
ATRAZINE
METHOD: 2437 , TESTIDCODE: 65065LCM60
Open Data Set

The SGPlot Procedure

Plotted Points Statistics
ATRAZINE

Spike Level N Mean Std-Dev. Median F_Pseudo
>= Reporting Level 30 98% 12% 95% 12%
Total 30 98% 12% 95% 12%

Sample Statistics
ATRAZINE

Characteristic N % % Basis
Plotted 30 100% Spiked
Estimated Values 3 10% Spiked
Deleted Values 0 0% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 30 .  
False Negatives 0 0% 0 out of 30
Not Spiked 18 .  
False Positives 1 6% 1 out of 18