BQS OBSP Determination:
TETRACHLOROETHYLENE
METHOD: 1433 , TESTIDCODE: 34476GCM37
Open Data Set
Plotted Points Statistics
TETRACHLOROETHYLENE
Spike Level
N
Mean
Std-Dev.
Median
F_Pseudo
< Reporting Level
4
21%
8%
18%
7%
>= Reporting Level
23
26%
13%
28%
12%
Total
27
25%
12%
25%
12%
Sample Statistics
TETRACHLOROETHYLENE
Characteristic
N
%
% Basis
Plotted
27
90%
Spiked
Estimated Values
27
90%
Spiked
Deleted Values
0
0%
Spiked + Not Spiked
Spiked, Censored
2
7%
Spiked
Spiked
30
.
False Negatives
1
3%
1 out of 30
Not Spiked
22
.
False Positives
0
0%
0 out of 22