The asset turnover ratio (ATR) is the ratio of a company’s revenues to the value of its assets (indicating its efficiency in deploying its assets). We should not use the standard deviation to compare ATR variation among industrial sectors because firms with large asset bases (e.g., utilities, financial) typically have lower mean ATR than, say, retail firms. RetailUtilitiesFinancialMean2.13100.05670.0777Standard Deviation0.59600.00920.0239