Review of the Randich-Grant Article
Metallurgy (Dr. Randich)
Statistics (Dr. Grant)
Both sections of the article failed to make their case.
The metallurgical section contained a huge gap in its logic (proposing an
explanation but failing to support it quantitatively), and predicted at least
two features of the elemental data that were the opposite of that actually
observed. The statistical section started well, but stumbled when it confused
heterogeneity with analytical uncertainty and when it used confidence intervals
instead of difference in means to assess the separation of the two groups of
crime-scene fragments. Fixing these two errors gave the opposite result, i.e.,
confirmed that the groups were distinct.
Thus we are back to the situation before this article was
published—the two groups of fragments are
real, and represent two and only two MC bullets. The Latter-Day NAA Revisionism
has failed.