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Chapter 9 Case Study The table below contains the Return on Assets (ROA) and the growth in sales for two publicly traded hospitality firms - one restaurant and the other a hotel. Compute the mean and standard deviation of the ROA and sales growth. Based on the volatility of the returns and growth rate, identify which of the firms is the hotel and which one is the restaurant. Justify your choice. Date Firm A Firm B ROA Sales Growth ROA Sales Growth 12/31/2019 5% 1% 13% 0% 12/31/2018 8% -9% 18% -8% 12/31/2017 6% 34% 15% -7% 12/31/2016 3% 18% 15% -3% 12/31/2015 14% 5% 12% -7% 12/31/2014 11% 8% 14% -2% 12/31/2013 9% 8% 15% 2% 12/28/2012 9% -4% 15% 2% 12/30/2011 3% 5% 17% 12% 12/31/2010 5% 7% 15% 6% Da G GA a ba 92 Styles Format U S Xzx Ix 92 es X