The test for compressive strength has been studied using zinc oxide eugenol cements. The distribution of results is negatively skewed; however, removal of outlying results converts it to a normal one. Test parameters have little effect on results with the exception of the shape of the test cylinder.
Get full access to this article
View all access options for this article.
References
1.
Grubbs, F.E. : Procedure for Detecting Outlying Observations in Samples, Technometrics11: 1-21, 1969.