Question

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​ expensive.) men have hip breadths that are normally distributed with a mean of 14.6 in. and a standard deviation of 0.8 in. find upper p 99. that​ is, find the hip breadth for men that separates the smallest 99​% from the largest 1​%.

Answer 1

Hip Breadths and Aircraft Seats
Engineers want to design seats in commercial aircraft so that they are wide enough to fit 98% of all males. (Accommodating 100% of males would be too expensive.) Men have hip breadths that are normally distributed with a mean of 14.4 in. and a standard deviation of 1.0 in. Find P 98. That is, find the hip breadth for men that separates the smallest 98% from the largest 2%.