AOAC SPIFAN WPC ERP-Final Action Review (Nov. 2017)

2016.15 (Nov. 2017) - WPC-31 MLT-Final Action Review

FOR ERP USE ONLY DO NOT DISTRIBUTE

Table 2016.15E: Statistical analysis of practice samples (4 laboratories, similar instrument)

Sample SX1

Sample SX2

measure

SHCDC

NIFDC 41.77 40.85 40.88 40.84 41.11 40.84 41.81 41.27 40.75 41.28 41.27 39.9

CAIQ 44.61

BJCDC 41.36

measure

SHCDC

NIFDC 60.36 59.95 59.73 59.88 60.04 60.78 59.89 59.74 59.96 59.95 60.03 59.7

CAIQ 60.87 60.69 61.66 60.93 63.52 61.51 61.22 60.61 61.97 60.37 63.12 61.46

BJCDC 62.39 61.65 61.88 62.12 61.76 62.08 61.36 61.52 62.46 62.08

#1 #2 #3 #4 #5 #6 #7 #8 #9

40.6

#1 #2 #3 #4 #5 #6 #7 #8 #9

59.68 59.91 59.35 60.05 59.47 59.81 60.27 60.01 58.89 59.67 59.75 59.35

40.76 40.52 40.59 40.75 40.19 40.49 40.48 39.96 40.37 40.49 40.7

43.1

41.9

43.72 44.02 42.78 43.26 43.74 42.53 43.84 41.27 44.17 43.51

41.76 40.22 41.87 40.36 41.63 41.86 41.63

#10 #11 #12

40.8

#10 #11 #12

41.12 40.31

60.5

61.84

Statistics per lab Average

40.49

41.05

43.38

41.24 Average

59.68 0.376

60

61.49 0.976

61.8

SD(r)

0.23 0.57 0.04

0.51 1.23 0.17

0.89 2.04 0.52

0.65 1.58 0.28 0.52 1.49 3.02 3.37 3.88 2.28

SD(r)

0.302

0.525

RSD(r)

RSD(r)

0.63

0.5

1.59 0.65

0.85 0.19

Cochran's

Cochran's

0.1

0.06

Global statistics Mean

41.54

Cochran's

Mean SD(r) SD(L) SD(R)

60.75

Cochran's

0.65 0.99 1.72 1.99 3.35 2.16

SD(r) SD(L) SD(R)

0.62 1.25

RSD(r) RSD(L) RSD(R)

0.6

RSD(r) RSD(L) RSD(R)

1.04 1.21 1.66 0.92

1.4

r

1.72 1.47

R

r

R

HorRat

PRSD(R)

HorRat

PRSD(R)