Goodman, Landry, and the Market Index, business and finance homework help

Use the data given to calculate annual returns for Goodman, Landry, and the Market Index, and then calculate average annual returns for the two stocks and the index. (Hint: Remember, returns are calculated by subtracting the beginning price from the ending price to get the capital gain or loss, adding the dividend to the capital gain or loss, and then dividing the result by the beginning price. Assume that dividends are already included in the index. Also, you cannot calculate the rate of return for 2008 because you do not have 2007 data.)
Calculate the standard deviations of the returns for Goodman, Landry, and the Market Index. (Hint: Use the sample standard deviation formula given in the chapter, which corresponds to the STDEV function in Excel.)
What dividends do you expect for Goodman Industries stock over the next 3 years if you expect the dividend to grow at the rate of 5% per year for the next 3 years? In other words, calculate D1, D2, and D3. Note that D0 = $1.50.
Assume that Goodman Industries’ stock has a required return of 13%. You will use this required return rate to discount the dividends calculated earlier. If you plan to buy the stock, hold it for 3 years, and then sell it for $27.05, what is the most you should pay for it?