Plot of pctrecov * newdate

Statistics for the Plotted Points
HEXACHLOROBENZENE

Spike Level N Mean Std-Dev. Median F_Pseudo
Lower Range 4 85% 17% 88% 20%
Upper Range 9 86% 14% 86% 16%
Total 13 86% 15% 86% 16%

Miscellaneous Statistics for the Samples
HEXACHLOROBENZENE

Characteristic N % % Basis
Plotted 13 93% Spiked
Estimated Values 0 0% Spiked
Deleted Values 3 5% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 15 .  
False Negatives 1 7% 1 out of 14
Not Spiked 43 .  
False Positives 4 10% 4 out of 41