Plot of pctrecov * newdate

Statistics for the Plotted Points
BENZO[A]PYRENE

Spike Level N Mean Std-Dev. Median F_Pseudo
Lower Range 12 72% 10% 73% 7%
Upper Range 8 73% 18% 73% 18%
Total 20 72% 13% 73% 9%

Miscellaneous Statistics for the Samples
BENZO[A]PYRENE

Characteristic N % % Basis
Plotted 20 100% Spiked
Estimated Values 3 15% Spiked
Deleted Values 1 2% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 21 .  
False Negatives 0 0% 0 out of 20
Not Spiked 35 .  
False Positives 3 9% 3 out of 35