BQS OBSP Determination:
BUTYLATE
METHOD: 2437 , TESTIDCODE: 65068LCM60
Open Data Set

The SGPlot Procedure

Plotted Points Statistics
BUTYLATE

Spike Level N Mean Std-Dev. Median F_Pseudo
>= Reporting Level 12 78% 17% 84% 13%
Total 12 78% 17% 84% 13%

Sample Statistics
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Characteristic N % % Basis
Plotted 12 48% Spiked
Estimated Values 1 4% Spiked
Deleted Values 0 0% Spiked + Not Spiked
Spiked, Censored 10 40% Spiked
Spiked 25 .  
False Negatives 3 12% 3 out of 25
Not Spiked 23 .  
False Positives 0 0% 0 out of 23