BQS OBSP Determination:
CHLOROMETHANE
METHOD: 2021 , TESTIDCODE: 34418GCM66
Open Data Set
Plotted Points Statistics
CHLOROMETHANE
Spike Level
N
Mean
Std-Dev.
Median
F_Pseudo
< Reporting Level
16
112%
30%
109%
17%
>= Reporting Level
147
120%
21%
118%
20%
Total
163
119%
22%
118%
20%
Sample Statistics
CHLOROMETHANE
Characteristic
N
%
% Basis
Plotted
163
98%
Spiked
Estimated Values
163
98%
Spiked
Deleted Values
33
6%
Spiked + Not Spiked
Spiked, Censored
4
2%
Spiked
Spiked
189
.
False Negatives
0
0%
0 out of 167
Not Spiked
319
.
False Positives
6
2%
6 out of 308
