Question

Assume that military aircraft use ejection seats designed for men weighing between 134 lb and 200...

Assume that military aircraft use ejection seats designed for men weighing between

134

lb and

200

lb. If​ women's weights are normally distributed with a mean of

164.6

lb and a standard deviation of

48.2

​lb, what percentage of women have weights that are within those​ limits? Are many women excluded with those​ specifications?

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Answer #1

P(134 < X < 200)
= P((134 - 164.6)/48.2 < z < (200 - 164.6)/48.2)
= P(-0.63   < z < 0.73)
= P(z < 0.73) - P(z < -0.63)
= 0.7673 - 0.2643
= 0.503

Hence 50.3% of women are within the limit and 49.7% excluded with those specifications.

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