PLEASE USE EXCEL TO SOLVE THE FOLLOWING QUESTION AND SHOW ALL WORK. THANK YOU!

You are choosing among three retirement funds. Alpha Fund has an expected return of 24% and a standard deviation of 10%. Beta Fund has an expected return of 41% and a standard deviation of 35%. Gamma Fund has an expected return of 22%. If according to the mean-standard deviation rule the Gamma Fund would never be chosen, then the Gamma Fund's standard deviation must be greater than what? Gamma Fund's standard deviation must be greater than (Round to one decimal place.)