The Army reports that the distribution of head circumference among soldiers is approximately normal with mean 22.2 inches and standard deviation 1.2 inches. Helmets are mass-produced for all except the smallest 5% and the largest 5% of head sizes. Soldiers in the smallest or largest 5% get custom-made helmets. What head sizes get custom-made helmets? Head sizes less than in and head sizes greater than in will get the custom-made helmets.