Question: The U.S. Air Force is reviewing its orders for uniforms because it has a surplus of uniforms for tall recruits and a shortage for shorter recruits. Its review involves data for 772 men between the ages of 18 and 24. That sample group has a mean height of 69.7 inches with a standard deviation of 2.8 inches. Use these sample data to find the 99% confidence interval for the mean height of all men between the ages of 18 and 24. Give the low and high values of the confidence level range, to 1 decimal place of precision, separated by a comma and 1 blank character.