BQS OBSP Determination:
4-ISOPROPYL-1-METHYLBENZENE (CYMENE)
METHOD: 2021 , TESTIDCODE: 77356GCM66
Open Data Set

The SGPlot Procedure

Plotted Points Statistics
4-ISOPROPYL-1-METHYLBENZENE (CYMENE)

Spike Level N Mean Std-Dev. Median F_Pseudo
< Reporting Level 5 79% 31% 77% 22%
>= Reporting Level 132 83% 17% 79% 17%
Total 137 83% 17% 79% 17%

Sample Statistics
4-ISOPROPYL-1-METHYLBENZENE (CYMENE)

Characteristic N % % Basis
Plotted 137 100% Spiked
Estimated Values 16 12% Spiked
Deleted Values 33 6% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 165 .  
False Negatives 0 0% 0 out of 137
Not Spiked 343 .  
False Positives 1 0% 1 out of 338