Plot of pctrecov by newdate

Statistics for the Plotted Points
CHLORPYRIFOS, OXYGEN ANALOG

Spike Level N Mean Std-Dev. Median F_Pseudo
< Reporting Level 6 43% 18% 45% 16%
>= Reporting Level 41 28% 15% 24% 12%
Total 47 30% 16% 25% 18%

Miscellaneous Statistics for the Samples
CHLORPYRIFOS, OXYGEN ANALOG

Characteristic N % % Basis
Plotted 47 73% Spiked
Estimated Values 47 73% Spiked
Deleted Values 5 3% Spiked + Not Spiked
Spiked, Censored 4 6% Spiked
Spiked 64 .  
False Negatives 13 20% 13 out of 64
Not Spiked 118 .  
False Positives 0 0% 0 out of 113