A COMPARISON OF ANTIPERSPIRANT DATA-ANALYSIS METHODS

The purpose of an antiperspirant study may be to estimate the efficacy of a product, to compare two or more products, or to provide support for an advertising claim. In any of these cases, various statistical m ethods are available to analyze the data. In this paper, we will compa re three methods of estimating the efficacy of a single antiperspirant product. Over the years Hill Top Research, Inc. has collected vast am ounts of antiperspirant data, and this large base of historical inform ation will be utilized for comparing the statistical methods of intere st. This investigation suggests that one of the methods is preferable to the others.