BQS OBSP Determination:
N-PROPYLBENZENE
METHOD: 2021 , TESTIDCODE: 77224GCM66
Open Data Set

The SGPlot Procedure

Plotted Points Statistics
N-PROPYLBENZENE

Spike Level N Mean Std-Dev. Median F_Pseudo
< Reporting Level 4 84% 15% 83% 19%
>= Reporting Level 177 89% 14% 88% 12%
Total 181 89% 14% 88% 12%

Sample Statistics
N-PROPYLBENZENE

Characteristic N % % Basis
Plotted 181 100% Spiked
Estimated Values 40 22% Spiked
Deleted Values 33 6% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 209 .  
False Negatives 0 0% 0 out of 181
Not Spiked 299 .  
False Positives 0 0% 0 out of 294