document.write( "Question 442257: What are the big corporations doing with their wealth? One way to answer this question is to examine profits as percentage of assets. A random sample of 50 Fortune 500 companies gave the following information. \n" );
document.write( "Profit as percentage \n" );
document.write( "of assets 8.6-12.5 12.6-16.5 16.6-20.5 20.6-24.5 24.6-28.5 \n" );
document.write( "Number of \n" );
document.write( "companies 14 16 7 6 7 \r \n" );
document.write( "\n" );
document.write( "Estimate the sample mean, sample variance, and sample standard deviation for profit as percentage of assets. (Round your answers to one decimal place.) x = % of assets \n" );
document.write( "s2 = \n" );
document.write( "s = % of assets \n" );
document.write( " \n" );
document.write( "
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