Plot of pctrecov * newdate

Statistics for the Plotted Points
2-HYDROXYATRAZINE

Spike Level N Mean Std-Dev. Median F_Pseudo
Lower Range 45 89% 59% 95% 79%
Upper Range 18 80% 44% 80% 27%
Total 63 87% 55% 93% 71%

Miscellaneous Statistics for the Samples
2-HYDROXYATRAZINE

Characteristic N % % Basis
Plotted 63 94% Spiked
Estimated Values 63 94% Spiked
Deleted Values 0 0% Spiked + Not Spiked
Spiked, Censored 0 0% Spiked
Spiked 67 .  
False Negatives 4 6% 4 out of 67
Not Spiked 56 .  
False Positives 32 57% 32 out of 56