BQS OBSP Determination:
PHOSMET (IMIDAN)
SCHEDULE: 2033 , TESTIDCODE: 61601GCM39
Open Data Set

The SGPlot Procedure

Plotted Points Statistics
PHOSMET (IMIDAN)

Spike Level N Mean Std-Dev. Median F_Pseudo
< Reporting Level 16 84% 43% 92% 58%
>= Reporting Level 25 39% 19% 33% 21%
Total 41 56% 37% 46% 24%

Sample Statistics
PHOSMET (IMIDAN)

Characteristic N % % Basis
Plotted 41 67% Spiked
Estimated Values 41 67% Spiked
Deleted Values 3 2% Spiked + Not Spiked
Spiked, Censored 8 13% Spiked
Spiked 61 .  
False Negatives 12 20% 12 out of 61
Not Spiked 121 .  
False Positives 0 0% 0 out of 118