engineers want to design seats in commercial aircraft so that they are wide enough to fit 99% of all males. men have hip breadths that are normally distributed with a mean of 14.4 in. and a standard deviation of 0.9 in. find p99. that is, find the hip breadth for men that separates the smallest 99% from the largest 1%.

Engineers want to design seats in commercial aircraft so that they are wide enough to fit 98% of all males. Men have hip breadths that are normally distributed with a mean of 14.4 inches and a standard deviation of 1 inch. find P98. I really don't understand, help needed please.

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Find the z-value with a left tail of 0.98

invNorm(0.98) = 2.0537

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Find the corresponding x-value using x = zs+u

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x = 2.0537*1+14.4

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x = 16.45 inches

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