Plot of pctrecov by newdate

Statistics for the Plotted Points
3-BETA-COPROSTANOL

Spike Level N Mean Std-Dev. Median F_Pseudo
< Reporting Level 4 78% 18% 85% 17%
>= Reporting Level 81 61% 22% 62% 21%
Total 85 61% 22% 62% 21%

Miscellaneous Statistics for the Samples
3-BETA-COPROSTANOL

Characteristic N % % Basis
Plotted 85 87% Spiked
Estimated Values 67 68% Spiked
Deleted Values 5 2% Spiked + Not Spiked
Spiked, Censored 7 7% Spiked
Spiked 102 .  
False Negatives 6 6% 6 out of 98
Not Spiked 123 .  
False Positives 1 1% 1 out of 122