HOW IUOT TO LIE WITH STATISTICS: THE CORRECT WAY TO SUMMARIZE 6ElUClflWARK RESULTS
نویسندگان
چکیده
In the literature, performance results are frequently summarized using i.he arithmetic mean of performance ratios, leading, in some cases, to wrong conclusions (see Tables 2 and 3 in [Z]) or, at best, inappropriate statistics (see Tables’ 12 and 13 in [3]). We hope to elucidate this inadvertent misuse of statistics in reporting results by pointing out why the arithmetic mean should not be used to summarize normalized performance numbers, and showing why the geometric mean is the more appropriate measure. We do this in the form of some simple rules for improved statistical analysis of performance benchmark results.
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