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.

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$($a$)$ Use the sample data to calculate the coefficient of variation for each sector. $($Round your answers to $2$ decimal places.$)$

$($b$)$ Which sector has the highest degree of relative variation? The lowest?

The

financial

utilities

retail