BQS OBSP Determination:
1,2,3,5-TETRAMETHYLBENZENE
METHOD: 2021 , TESTIDCODE: 50000GCM66
Open Data Set

The SGPlot Procedure

Plotted Points Statistics
1,2,3,5-TETRAMETHYLBENZENE

Spike Level N Mean Std-Dev. Median F_Pseudo
< Reporting Level 4 89% 26% 78% 24%
>= Reporting Level 116 86% 16% 85% 13%
Total 120 86% 16% 85% 13%

Sample Statistics
1,2,3,5-TETRAMETHYLBENZENE

Characteristic N % % Basis
Plotted 120 100% Spiked
Estimated Values 7 6% Spiked
Deleted Values 33 6% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 125 .  
False Negatives 0 0% 0 out of 120
Not Spiked 383 .  
False Positives 2 1% 2 out of 355