BQS OBSP Determination:
SEC-BUTYLBENZENE
METHOD: 2021 , TESTIDCODE: 77350GCM66
Open Data Set

The SGPlot Procedure

Plotted Points Statistics
SEC-BUTYLBENZENE

Spike Level N Mean Std-Dev. Median F_Pseudo
< Reporting Level 1 41% . 41% 0%
>= Reporting Level 133 86% 12% 86% 10%
Total 134 86% 12% 86% 10%

Sample Statistics
SEC-BUTYLBENZENE

Characteristic N % % Basis
Plotted 134 100% Spiked
Estimated Values 37 28% Spiked
Deleted Values 33 6% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 156 .  
False Negatives 0 0% 0 out of 134
Not Spiked 352 .  
False Positives 0 0% 0 out of 341