In your position as research assistant to a portfolio manager, you need to analyze the profitability of the companies in the portfolio. Using the data for Oracle Corporation (NASDAQ: ORCL) below: Fiscal Year Total Revenue Net Income 2017 2015 2019 2018 2016 39,506 39,831 37,728 37,047 38,226 11,083 3,825 9,335 8,901 9,938 a. Calculate the net profit margin for each year. b. Calculate the compound average annual growth rates (CAGR) for revenue and net income using the geomean function. Is net income growing more slowly or faster than total revenue? Is this a positive for your investment in the company? c. Calculate the average annual growth rate of total revenue using the Average function. Is this result more or less accurate than your result in the previous question? Why? d. Create a Column chart of total revenue and net income. Be sure to change the chart so that the x-axis labels contain the year numbers, and format the axis so that 2019 is on the far right side of the axis. Repeat Problem 2 using the data below for Kroger Co (NYSE: KR). However, this time you should create a copy of your worksheet to use as a template. Replace the data for Oracle with that of Kroger. Fiscal Year 2019 Total Revenue 121,162 2018 2017 122,662 115,337 2016 2015 109,830 108,465 Net Income 3,076 1,890 1,959 2,021 1,711 a. Which company's sales were growing faster over this period? Which one had the faster net income growth? b. Which company was more profitable in 2019? Which was more profitable if you take a longer view? Would the volatility of the net profit margin affect your desire to invest in one company or the other