24. When women were finally allowed to become pilots of fighter je ejection seats because they had been original designed for men onl designed for men weighing between 140 lb and 211 ib. Weights of mean of 171 lb and a standard deviation of 46 lb. a) If 1 women is randomly selected, find the probability that her we Z-x- n=171 x=46₁ P(X-M.) F X-bar=171 201-171 P(140 x 211) = 0·8028-0.2 514 - = 0.5566 = 55.64% دامات کی (X= T

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24. When women were finally allowed to become pilots of fighter jets, engineers needed to redesign the
ejection seats because they had been original designed for men only. The ACES-II ejection seat was
designed for men weighing between 140 lb and 211 ib. Weights of women are normally distributed with a
mean of 171 lb and a standard deviation of 46 lb.
a) If 1 women is randomly selected, find the probability that her weight is between 140 lb and 211 lb.
Z-x-
-
X-bar=171
211-171
n=131
X=46
1(140 x 211) = 0·8078 -0.2514
P(X-M.)
= 0·5564
55.64%
دامات کے
طبا
< (P= 0+27) P²2--0-67)
S=14
H7
140-1771
46
TT
b) If 25 different women are randomly selected, find the probability that their mean weight is between
140 lb and 211 lb.
F/n=46/25= 9.2
X-bar = (171,9.2)
PC140-211) = P(211-171) X-u (140-171)
9.2
P=/4-35)
P= (-3.37)
Transcribed Image Text:24. When women were finally allowed to become pilots of fighter jets, engineers needed to redesign the ejection seats because they had been original designed for men only. The ACES-II ejection seat was designed for men weighing between 140 lb and 211 ib. Weights of women are normally distributed with a mean of 171 lb and a standard deviation of 46 lb. a) If 1 women is randomly selected, find the probability that her weight is between 140 lb and 211 lb. Z-x- - X-bar=171 211-171 n=131 X=46 1(140 x 211) = 0·8078 -0.2514 P(X-M.) = 0·5564 55.64% دامات کے طبا < (P= 0+27) P²2--0-67) S=14 H7 140-1771 46 TT b) If 25 different women are randomly selected, find the probability that their mean weight is between 140 lb and 211 lb. F/n=46/25= 9.2 X-bar = (171,9.2) PC140-211) = P(211-171) X-u (140-171) 9.2 P=/4-35) P= (-3.37)
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