BQS OBSP Determination:
METOLACHLOR OXANILIC ACID
METHOD: 2437 , TESTIDCODE: 68650LCM60
Open Data Set

The SGPlot Procedure

Plotted Points Statistics
METOLACHLOR OXANILIC ACID

Spike Level N Mean Std-Dev. Median F_Pseudo
< Reporting Level 1 81% . 81% 0%
>= Reporting Level 18 70% 21% 69% 20%
Total 19 70% 21% 71% 21%

Sample Statistics
METOLACHLOR OXANILIC ACID

Characteristic N % % Basis
Plotted 19 90% Spiked
Estimated Values 0 0% Spiked
Deleted Values 0 0% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 21 .  
False Negatives 2 10% 2 out of 21
Not Spiked 27 .  
False Positives 4 15% 4 out of 27