Engineers want to design seats in commercial aircraft so that they are wide enough to fit 99​% of all males.​ (Accommodating 100% of males would require very wide seats that would be much too​...

Engineers want to design seats in commercial aircraft so that they are wide enough to fit

of all males.​ (Accommodating 100% of males would require very wide seats that would be much too​ expensive.) Men have hip breadths that are normally distributed with a mean of

in. and a standard deviation of

in. Find

That​ is, find the hip breadth for men that separates the smallest

from the largest