BQS OBSP Determination:
BENZENE
METHOD: 2021 , TESTIDCODE: 34030GCM66
Open Data Set

The SGPlot Procedure

Plotted Points Statistics
BENZENE

Spike Level N Mean Std-Dev. Median F_Pseudo
< Reporting Level 3 90% 29% 107% 38%
>= Reporting Level 245 101% 10% 102% 9%
Total 248 101% 11% 102% 9%

Sample Statistics
BENZENE

Characteristic N % % Basis
Plotted 248 100% Spiked
Estimated Values 75 30% Spiked
Deleted Values 33 6% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 276 .  
False Negatives 0 0% 0 out of 248
Not Spiked 232 .  
False Positives 6 3% 6 out of 227