Question

An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots weighing between

150

lb and

201

lb. The new population of pilots has normally distributed weights with a mean of

156 lb

and a standard deviation of

33.8 lb

a. If a pilot is randomly selected, find the probability that his weight is between

150

lb and

201

lb.The probability is approximately

nothing.

(Round to four decimal places as needed.)

b. If

36

different pilots are randomly selected, find the probability that their mean weight is between

150

lb and

201

lb.The probability is approximately

nothing.

(Round to four decimal places as needed.)

c. When redesigning the ejection seat, which probability is more relevant?

Answer #1

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An engineer is going to redesign an ejection seat for an
airplane. The seat was designed for pilots weighing between
150
lb and
201
lb. The new population of pilots has normally distributed
weights with a mean of
156 lb
and a standard deviation of
33.8 lb
a. If a pilot is randomly selected, find the probability that
his weight is between
150
lb and
201
lb.The probability is approximately
nothing.
(Round to four decimal places as needed.)
b. If...

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b....

An engineer is going to redesign an ejection seat for an
airplane. The seat was designed for pilots weighing between 130 lb
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120lb and 181lb. The new population of pilots has normally
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a. If a pilot is randomly selected, find the probability that
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b. If 40 different pilots are randomly selected,...

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