An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots weighing between 130 Ib and 171 lb. The new population of pilot= has normally distributed weights with a mean of 135 lb and a standard deviation of 32.6 lb. Click here to view page 1 of the standard normal distribution. Click here to view page 2 of the standard normal distribution. a. If a pilot is randomly selected, find the probability that his weight is between 130 lb and 171 lb. The probability is approximately (Round to four decimal places as needed.) b. If 30 different pilots are randomly selected, find the probability that their mean weight is between 130 lb and 171 lb. The probability is approximately (Round to four decimal places as needed.) c. When redesigning the ejection seat, which probability is more relevant? O A. Part (a) because the seat performance for a single pilot is more important. B. Part (b) because the seat performance for a single pilot is more important. OC. Part (a) because the seat performance for a sample of pilots is more important. O D. Part (b) because the seat performance for a sample of pilots is more important.

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots weighing between 130 Ib and 171 lb. The new population of pilots
has normally distributed weights with a mean of 135 lb and a standard deviation of 32.6 lb.
Click here to view page 1 of the standard normal distribution.
Click here to view page 2 of the standard normal distribution.
a. If a pilot is randomly selected, find the probability that his weight is between 130 lb and 171 lb.
The probability is approximately
(Round to four decimal places as needed.)
b. If 30 different pilots are randomly selected, find the probability that their mean weight is between 130 lb and 171 Ib.
The probability is approximately | (Round to four decimal places as needed.)
c. When redesigning the ejection seat, which probability is more relevant?
On
O A. Part (a) because the seat performance for a single pilot is more important.
O B. Part (b) because the seat performance for a single pilot is more important.
O C. Part (a) because the seat performance for a sample of pilots is more important.
iny
O D. Part (b) because the seat performance for a sample of pilots is more important.
nts
ess
h Puls
MA
Screen
Click to select your answer(s).
20-11..9
W
DEC
tv
6,030
11
Transcribed Image Text:An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots weighing between 130 Ib and 171 lb. The new population of pilots has normally distributed weights with a mean of 135 lb and a standard deviation of 32.6 lb. Click here to view page 1 of the standard normal distribution. Click here to view page 2 of the standard normal distribution. a. If a pilot is randomly selected, find the probability that his weight is between 130 lb and 171 lb. The probability is approximately (Round to four decimal places as needed.) b. If 30 different pilots are randomly selected, find the probability that their mean weight is between 130 lb and 171 Ib. The probability is approximately | (Round to four decimal places as needed.) c. When redesigning the ejection seat, which probability is more relevant? On O A. Part (a) because the seat performance for a single pilot is more important. O B. Part (b) because the seat performance for a single pilot is more important. O C. Part (a) because the seat performance for a sample of pilots is more important. iny O D. Part (b) because the seat performance for a sample of pilots is more important. nts ess h Puls MA Screen Click to select your answer(s). 20-11..9 W DEC tv 6,030 11
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