BQS OBSP Determination:
DIMETHYL PHTHALATE
METHOD: 1383 , TESTIDCODE: 34341GCM57
Open Data Set

The SGPlot Procedure

Plotted Points Statistics
DIMETHYL PHTHALATE

Spike Level N Mean Std-Dev. Median F_Pseudo
>= Reporting Level 55 81% 16% 84% 15%
Total 55 81% 16% 84% 15%

Sample Statistics
DIMETHYL PHTHALATE

Characteristic N % % Basis
Plotted 55 98% Spiked
Estimated Values 2 4% Spiked
Deleted Values 2 2% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 57 .  
False Negatives 1 2% 1 out of 56
Not Spiked 65 .  
False Positives 3 5% 3 out of 64