Erratum to: Quality control in geochemistry from a comparison of four central tendency and five dispersion estimators an
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ERRATUM
Erratum to: Quality control in geochemistry from a comparison of four central tendency and five dispersion estimators and example of a geochemical reference material Surendra P. Verma 1 & Lorena Díaz-González 2 & Javier A. Pérez-Garza 3 & Mauricio Rosales-Rivera 4
Published online: 6 January 2017 # Saudi Society for Geosciences 2017
Erratum to: Arab J Geosci (2016) 9:740 DOI 10.1007/s12517-016-2764-4 A few minor but serious errors occurred in the published article. Please note that throughout the text the symbol σ ^ n was erroneously replaced by σn. Also note at some places, the standard deviation symbol should be s (and not S). More importantly, the headings of Table 2 were misplaced. The correct headings should read as follows:
The online version of the original article can be found under at http://dx. doi.org/10.1007/s12517-016-2764-4. * Surendra P. Verma [email protected]
1
Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Priv. Xochicalco s/no., Col. Centro, Apdo. 34, Temixco 62580, Mexico
2
Departamento de Computación, Centro de Investigación en Ciencias, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma de Estado de Morelos, Av. Universidad 1001, Chamilpa, Cuernavaca, Mor. 62209, Mexico
3
Licenciatura en Ciencias, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma de Estado de Morelos, Av. Universidad 1001, Chamilpa, Cuernavaca, Mor. 62209, Mexico
4
Doctorado en Ciencias, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma de Estado de Morelos, Av. Universidad 1001, Chamilpa, Cuernavaca, Mor. 62209, Mexico
24 Page 2 of 3 Table 2 n
Arab J Geosci (2017) 10: 24
Finite sample correction factors* for several dispersion estimators
s
MAD
Qn
Sn
σbn
Bolch (1968)
this work
CR92**
Williams (2011)
Hayes (2014)
this work
CR92**
this work
CR92**
this work
this work
5
1.06385
1.0640
1.788
1.805
1.8038
1.8055
1.611
1.6095
1.875
1.3656
1.3762
6 7
1.05094 1.04235
1.0513 1.0426
1.779 1.690
1.763 1.688
1.7637 1.6872
1.7643 1.6877
1.184 1.429
1.3834 1.4299
1.358 1.904
1.3592 1.6146
1.2855 1.2587
8
1.03624
1.0365
1.674
1.671
1.6714
1.6716
1.199
1.3371
1.486
1.4874
1.2167
9 10
1.03166 1.02811
1.0319 1.0284
1.641 1.612
1.633 1.628
1.6327 1.6247
1.6336 1.6252
1.349 1.193
1.3501 1.3076
1.937 1.610
1.6018 1.5988
1.2019 1.1781
11
1.02527
1.0255
1.599
1.612
1.6013
1.6018
1.299
1.3075
1.971
1.7323
1.1685
12 13
1.02296 1.02103
1.0232 1.0213
1.589 1.580
1.599 1.589
1.5962 1.5805
1.5969 1.5810
1.193 1.281
1.2862 1.2817
1.688 2.006
1.6814 1.7425
1.1529 1.1464
14
1.01940
1.0197
1.572
1.580
1.5773
1.5777
1.193
1.2703
1.748
1.7434
1.1355
15 16
1.01800 1.01679
1.0184 1.0171
1.566 1.561
1.573 1.567
1.5662 1.5637
1.5665 1.5640
1.269 1.193
1.2647 1.2585
2.032 1.795
1.8223 1.7931
1.1310 1.1229
17
1.01574
1.0161
1.556
1.561
1.5555
1.5561
1.259
1.2531
2.053
1.8325
1.1194
18
1.01481
1.0152
1.
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