Standard deviation radiocarbon dating
k = σ) The tree ring data set for the years between 14 used Belfast Irish oak.
The University of Washington (Seattle data set) supplied most of the measurements. sample 3 linen from Cleopatra’s Mummy, age measured by scintillation counting = 2,010 ± 80 yr BP.
It appears that an additional error multiplier factor should be applied to the stated error for the Vinland map.
The k calculated according to the procedure of Reimer The chi square (2 degrees of freedom) calculated for this data is 6.4 with a level of significance of 5%.
An error multiplier, k = 1.3, was assigned to the Seattle data, additional variability in measurements was assigned to the data sets from Belfast and from Waikato, New Zealand (see Table 1). sample 4 cope from St Louis d'Anjou dated at ~ AD 1290 – 1310.
As this is improbable, we are dependent on statistical estimates using current data. , the estimate of the standard error of the mean, agrees reasonably well with the estimates the U of Arizona reported for the total errors for the Shroud of Turin and the three controls, but not for the Vinland map.
) state that counting statistics do not represent all the uncertainties in radiocarbon dating and that the errors resulting from type of sample, preparation and laboratory differences are difficult to quantify.
When the consortium correlated the data resulting from various wood samples from different labs for the 2004 the atmospheric decadal tree ring data set, they applied an error multiplier k to the estimated standard deviations (SD) of the various data sets.
The three labs made a large number of measurements on samples of Belfast Irish oak of known age and this data was used to produce the 2004 atmospheric decadal tree ring data set.
The probability that random error alone is responsible for the scatter between the results reported by three labs is less the 5%.
This indicates the possibility of the presence of systematic errors in the radiocarbon measurements for the Shroud of Turin, perhaps due to different sample preparation methods. The Supplemental Data on which this curve is based may be found at Cal04 C BP year values for the four pages of the Voynich Manuscript are available, it is possible from the variance in their ages to calculate an estimate of the standard error of the mean. The raw data was converted to the atmospheric decadal tree ring data set using a random walk model (Buck and Blackwell, Table 5 shows that the Seattle raw data age estimates tend to be younger (positive offset) than the other data sets (Reimer This indicates the presence of a systematic error between data from Seattle and data from Belfast and Waikato.