Question
When women were finally allowed to become pilots of fighterjets, engineers needed to redesign the ejection seats because they had been originally designed for men
When women were finally allowed to become pilots of fighterjets, engineers needed to redesign the ejection seats because they had been originally designed for men only. The ejection seats were designed for men weighing between 150 lb and 191 lb. Weights of women are now normally distributed with a mean of 163lb and a standard deviation of 46lb. Complete parts(a) through(c) below.
a. If 1 woman is randomlyselected, find the probability that her weight is between 150 lb and 191 lb.
The probability is approximately
(Round to four decimal places asneeded.)
b. If 28 different women are randomlyselected, find the probability that their mean weight is between 150 lb and 191 lb.
The probability is approximately
nothing (Round to four decimal places asneeded.)
c. When redesigning the ejectionseat, which probability is morerelevant?
A.The part(b) probability is more relevant because the seat performance for a sample of pilots is more important.
B.The part(a) probability is more relevant because the seat performance for a single pilot is more important.
C.The part(a) probability is more relevant because the seat performance for a sample of pilots is more important.
D.The part(b) probability is more relevant because the seat performance for a single pilot is more important.
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