The file A4_Age_Millionaire_Q5.xlsx contains the age (in years) of 36 randomly selected U.S. millionaires, the same data that was presented in Question 5. of Part A. Assume that the standard deviation of ages of all U.S. millionaires is 13.0 years. Use the proper graphical tools in R and R commander to assess whether it is reasonable to apply the one-sample zinterval procedure. Give the relevant R output. Make sure to write down the assumptions of the procedure and address whether the assumptions are satisfied.