BQS OBSP Determination:
TEBUTHIURON
METHOD: 2001 , TESTIDCODE: 82670GCM35
Open Data Set

The SGPlot Procedure

Plotted Points Statistics
TEBUTHIURON

Spike Level N Mean Std-Dev. Median F_Pseudo
< Reporting Level 14 192% 51% 196% 59%
>= Reporting Level 57 168% 64% 163% 61%
Total 71 173% 62% 170% 61%

Sample Statistics
TEBUTHIURON

Characteristic N % % Basis
Plotted 71 100% Spiked
Estimated Values 18 25% Spiked
Deleted Values 0 0% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 71 .  
False Negatives 0 0% 0 out of 71
Not Spiked 59 .  
False Positives 1 2% 1 out of 59