BQS OBSP Determination:
4-METHYL-2-PENTANONE
METHOD: 4440 , TESTIDCODE: 78133GCM66
Open Data Set

The SGPlot Procedure

Plotted Points Statistics
4-METHYL-2-PENTANONE

Spike Level N Mean Std-Dev. Median F_Pseudo
< Reporting Level 7 106% 10% 106% 8%
>= Reporting Level 18 97% 11% 95% 12%
Total 25 99% 11% 99% 12%

Sample Statistics
4-METHYL-2-PENTANONE

Characteristic N % % Basis
Plotted 25 100% Spiked
Estimated Values 0 0% Spiked
Deleted Values 0 0% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 25 .  
False Negatives 0 0% 0 out of 25
Not Spiked 11 .  
False Positives 0 0% 0 out of 11