BQS OBSP Determination:
TETRACHLOROMETHANE
METHOD: 2021 , TESTIDCODE: 32102GCM66
Open Data Set
Plotted Points Statistics
TETRACHLOROMETHANE
Spike Level
N
Mean
Std-Dev.
Median
F_Pseudo
< Reporting Level
3
86%
35%
96%
50%
>= Reporting Level
237
99%
19%
100%
15%
Total
240
99%
19%
100%
15%
Sample Statistics
TETRACHLOROMETHANE
Characteristic
N
%
% Basis
Plotted
240
99%
Spiked
Estimated Values
45
19%
Spiked
Deleted Values
33
6%
Spiked + Not Spiked
Spiked, Censored
0
0%
Spiked
Spiked
275
.
False Negatives
2
1%
2 out of 242
Not Spiked
233
.
False Positives
1
0%
1 out of 233