nstructions ou may work by yourself or in groups of up to four on this homework assignment. Complete the following using the attached spreadsheet. Use cell ormulas wherever possible. IF YOU DO ALL THE CALCULATIONS USING A CALCULATOR AND MERELY TYPE IN THE NUMBERS IT WILL BE MPOSSIBLE TO RECEIVE MORE THAN 70% ON THIS ASSIGNMENT, SINCE THIS DEFEATS THE PURPOSE OF A SPREADSHEET. . (10 pts.) Complete Spreadsheet Exercise 6.1. Note I made a slight change in part b 6.1 Warren Buffett, arguably the most famous investor in the United States, is the CEO of Berkshire Hathaway (BRK), a company that has enjoyed great success in terms of its stock price. The actual year-end stock prices for BRK-A from 1965 through 2011 are in the file attached to this assignment. (Yes, these are the actual stock prices, believe it or not a. Calculate the return relatives for each year starting in 1966. Use two decimal places. b. Calculate the arithmetic and geometric means for these price return relatives, using three decimal places, c. Calculate the cumulative wealth index for 1966-2011, assuming an initial investment of $1,000 and $10,000.