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B
ird
et al
.:
J
ournal of
aoaC i
nternational
V
ol
.
99, n
o
.
4, 2016
Statistic
Matrix and
inoculation level Laboratory
Candidate
presumptive
Candidate
confirmed
Candidate
result
Reference
method
Candidate versus
reference
N X
POD
CP
N X
POD
CC
N X
POD
C
N X
POD
R
dLPOD
C
dLPOD
CP
MPN, CFU/test
portion
Estimate
0.67
All
156 83 0.53 156 83 0.53 156 82 0.53 156 77 0.49 0.03 0.00
LCL
0.53
0.44
0.43
0.43
0.41 −0.10 −0.14
UCL
0.83
0.62
0.63
0.62
0.58 0.16 0.14
s
r
0.49
0.49
0.49
0.49
LCL
0.44
0.44
0.44
0.45
UCL
0.52
0.52
0.52
0.52
s
L
0.09
0.12
0.10
0.06
LCL
0.00
0.00
0.00
0.00
UCL
0.24
0.27
0.25
0.22
s
R
0.50
0.50
0.50
0.50
UCL
0.45
0.45
0.45
0.45
LCL
0.52
0.52
0.52
0.52
P
T
0.1725
0.0715
0.1272
0.2813
Raw ground
beef (73%
lean), high
inoculum level
1
12 12 1
.00 12 12 1.00 12 12 1. 00 12 12 1.00 0.00 0.002
12 12 1
.00 12 12 1.00 12 12 1. 00 12 12 1.00 0.00 0.003
12 12 1
.00 12 12 1.00 12 12 1. 00 12 12 1.00 0.00 0.004
12 12 1
.00 12 12 1.00 12 12 1. 00 12 12 1.00 0.00 0.005
b
NA NA NA NA NA NA NA NA NA NA NA NA NA NA
6
12 12 1
.00 12 12 1.00 12 12 1. 00 12 12 1.00 0.00 0.007
c
NA NA NA NA NA NA NA NA NA NA NA NA NA NA
8
12 12 1
.00 12 12 1.00 12 12 1. 00 12 12 1.00 0.00 0.009
12 12 1
.00 12 12 1.00 12 12 1. 00 12 12 1.00 0.00 0.0010
c
NA NA NA NA NA NA NA NA NA NA NA NA NA NA
11
12 12 1
.00 12 12 1.00 12 12 1. 00 12 12 1.00 0.00 0.0012
12 11 0.92 12 11 0.92 12 11 0.92 12 12 1.00 −0.08 0.00
13
12 12 1
.00 12 12 1.00 12 12 1. 00 12 12 1.00 0.00 0.0014
12 12 1
.00 12 12 1.00 12 12 1. 00 12 12 1.00 0.00 0.0015
12 12 1
.00 12 12 1.00 12 12 1. 00 12 12 1.00 0.00 0.0016
12 12 1
.00 12 12 1.00 12 12 1. 00 12 12 1.00 0.00 0.00MPN, CFU/test
portion
Estimate
4.76
All
156 155 0.99 156 155 0.99 156 155 0.99 156 156 1.00 −0.01 0.00
LCL
3.41
0.96
0.96
0.96
0.98 −0.04 −0.03
UCL
6.65
1.00
1.00
1.00
1.00 0.02 0.03
s
r
0.08
0.08
0.08
0.00
LCL
0.07
0.07
0.07
0.00
UCL
0.15
0.15
0.15
0.15
s
L
0.00
0.00
0.00
0.00
LCL
0.00
0.00
0.00
0.00
UCL
0.03
0.03
0.03
0.15
s
R
0.08
0.08
0.08
0.00
UCL
0.07
0.07
0.07
0.00
LCL
0.09
0.09
0.09
0.21
P
T
0.4395
0.4395
0.4395
1.00
a
NA = No data submitted by the collaborating laboratory.
b
Laboratory 5 was unable to conduct the analysis did not submit data for this matrix.
c
Laboratories 7 and 10 did not participate in the evaluation of this matrix.
d
LCL = Lower confidence limit.
e
UCL = Upper confidence limit.
Table 2016.01C. (
continued
)