Plot of pctrecov by newdate

Statistics for the Plotted Points
BETA-STIGMASTANOL

Spike Level N Mean Std-Dev. Median F_Pseudo
< Reporting Level 2 69% 43% 69% 45%
>= Reporting Level 63 56% 20% 57% 20%
Total 65 56% 21% 57% 20%

Miscellaneous Statistics for the Samples
BETA-STIGMASTANOL

Characteristic N % % Basis
Plotted 65 74% Spiked
Estimated Values 60 68% Spiked
Deleted Values 7 3% Spiked + Not Spiked
Spiked, Censored 7 8% Spiked
Spiked 92 .  
False Negatives 16 18% 16 out of 88
Not Spiked 133 .  
False Positives 0 0% 0 out of 130