Plot of pctrecov * newdate

Statistics for the Plotted Points
2-HYDROXYATRAZINE

Spike Level N Mean Std-Dev. Median F_Pseudo
Lower Range 57 96% 56% 113% 55%
Upper Range 17 81% 45% 82% 27%
Total 74 92% 54% 107% 54%

Miscellaneous Statistics for the Samples
2-HYDROXYATRAZINE

Characteristic N % % Basis
Plotted 74 95% Spiked
Estimated Values 68 87% Spiked
Deleted Values 0 0% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 78 .  
False Negatives 4 5% 4 out of 78
Not Spiked 75 .  
False Positives 34 45% 34 out of 75