Consider the following table for a period of six years. a. Calkulate the arithmenic average returns for large-company stocks arid T blls over thes tine period. Note: Do not round intermiediete calculations snd enter your answers as a percent rounded to 2 decimal pleces, e.g-, 32.15. b. Calculate the standard devation of the retugns for large-compary stocks and T-tils over this thme period. Note: Do not round intermediate calculations and enter your answers as s percent rounded to 2 decimal places, e.9- 32.16. c. Calculate the observed risk premum in each year for the lavge-company stocks verras the T-bils. What was the aithmetic averegerisk premium ower this period? Note: A negntive anwwer should be indicated by o minus tign. Do not reund intermediate calculations and enter your answer as 6 percent rounded to 2 decimat placen, cog,32.16 d. What was the utandard devation of the risk prerram over this penod? Note: Do not round intermediste cakiulations nad enter your answer as a percent rounded to 2 decimal ploces, e.g 32.16. Consider the following table for a period of six years. a. Calkulate the arithmenic average returns for large-company stocks arid T blls over thes tine period. Note: Do not round intermiediete calculations snd enter your answers as a percent rounded to 2 decimal pleces, e.g-, 32.15. b. Calculate the standard devation of the retugns for large-compary stocks and T-tils over this thme period. Note: Do not round intermediate calculations and enter your answers as s percent rounded to 2 decimal places, e.9- 32.16. c. Calculate the observed risk premum in each year for the lavge-company stocks verras the T-bils. What was the aithmetic averegerisk premium ower this period? Note: A negntive anwwer should be indicated by o minus tign. Do not reund intermediate calculations and enter your answer as 6 percent rounded to 2 decimat placen, cog,32.16 d. What was the utandard devation of the risk prerram over this penod? Note: Do not round intermediste cakiulations nad enter your answer as a percent rounded to 2 decimal ploces, e.g 32.16