BQS ORGANIC BLIND SAMPLES
ANTHRACENE,
Schedule: 1383 Testid: 34220GCM57
Measured in MICROGRAMS PER LITER
04/13/07 TO 01/08/13
Open Data Set

Plot of pctrecov by newdate

Statistics for the Plotted Points
ANTHRACENE

Spike Level N Mean Std-Dev. Median F_Pseudo
< Reporting Level 3 72% 7% 74% 10%
>= Reporting Level 52 74% 11% 74% 9%
Total 55 74% 11% 74% 9%

Miscellaneous Statistics for the Samples
ANTHRACENE

Characteristic N % % Basis
Plotted 55 96% Spiked
Estimated Values 5 9% Spiked
Deleted Values 4 3% Spiked + Not Spiked
Spiked, Censored 1 2% Spiked
Spiked 58 .  
False Negatives 1 2% 1 out of 57
Not Spiked 82 .  
False Positives 3 4% 3 out of 79