Plot of pctrecov by newdate

Statistics for the Plotted Points
2-HYDROXYATRAZINE

Spike Level N Mean Std-Dev. Median F_Pseudo
< Reporting Level 9 93% 40% 108% 25%
>= Reporting Level 61 103% 38% 110% 45%
Total 70 102% 38% 109% 43%

Miscellaneous Statistics for the Samples
2-HYDROXYATRAZINE

Characteristic N % % Basis
Plotted 70 99% Spiked
Estimated Values 23 32% Spiked
Deleted Values 7 3% Spiked + Not Spiked
Spiked, Censored 1 1% Spiked
Spiked 72 .  
False Negatives 0 0% 0 out of 71
Not Spiked 161 .  
False Positives 19 12% 19 out of 155