Plot of pctrecov by newdate

Statistics for the Plotted Points
ACETYL HEXAMETHYL TETRAHYDRONAPHTHALENE (AHTN)

Spike Level N Mean Std-Dev. Median F_Pseudo
< Reporting Level 8 85% 10% 84% 9%
>= Reporting Level 41 78% 15% 74% 12%
Total 49 79% 15% 76% 13%

Miscellaneous Statistics for the Samples
ACETYL HEXAMETHYL TETRAHYDRONAPHTHALENE (AHTN)

Characteristic N % % Basis
Plotted 49 94% Spiked
Estimated Values 16 31% Spiked
Deleted Values 3 1% Spiked + Not Spiked
Spiked, Censored 2 4% Spiked
Spiked 53 .  
False Negatives 1 2% 1 out of 52
Not Spiked 183 .  
False Positives 1 1% 1 out of 181