Plot of pctrecov by newdate

Statistics for the Plotted Points
COTININE

Spike Level N Mean Std-Dev. Median F_Pseudo
< Reporting Level 6 46% 14% 42% 8%
>= Reporting Level 81 72% 32% 60% 36%
Total 87 70% 32% 59% 38%

Miscellaneous Statistics for the Samples
COTININE

Characteristic N % % Basis
Plotted 87 98% Spiked
Estimated Values 75 84% Spiked
Deleted Values 3 1% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 92 .  
False Negatives 2 2% 2 out of 89
Not Spiked 144 .  
False Positives 0 0% 0 out of 144