3. The returns on stocks A and B are 12% and 16%, respectively. The SD of the returns on stocks A and B are 31% and 12%, respectively. The beta of A is 0.7, while that of B is 1.4. The risk free rate over the period was 5%, the market’s average return was 13%. a. Calculate the Sharpe ratio for each stock (10 points). b. Calculate the alpha for each stock (10 points). c. Which stock is the best choice if this stock will be mixed with the rest of the investor’s portfolio, currently composed solely of holdings in the market-index fund (15 points).

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The gilbert instrument corporation is considering replacing the wood steamer it currently uses to shape guitar sides. the steamer has 6 years of remaining life. if kept,the steamer will have depreciaiton expenses of $650 for five years and $325 for the sixthyear. its current book value is $3,575, and it can be sold on an internet auction site for$4,150 at this time. if the old steamer is not replaced, it can be sold for $800 at the endof its useful life. gilbert is considering purchasing the side steamer 3000, a higher-end steamer, whichcosts $12,000 and has an estimated useful life of 6 years with an estimated salvage value of$1,500. this steamer falls into the macrs 5-year class, so the applicable depreciationrates are 20.00%, 32.00%, 19.20%, 11.52%, 11.52%, and 5.76%. the new steamer is fasterand allows for an output expansion, so sales would rise by $2,000 per year; the newmachine's much greater efficiency would reduce operating expenses by $1,900 per year.to support the greater sales, the new machine would require that inventories increase by$2,900, but accounts payable would simultaneously increase by $700. gilbert's marginalfederal-plus-state tax rate is 40%, and its wacc is 15%.a. should it replace the old steamer? b. npv of replace = $2,083.51

Which is the most compelling reason why mobile advertising is related to big data?