Question
In: Statistics and Probability
An engineer is going to redesign an ejection seat for an airplane. The seat was designed...
An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots weighing between 150lb and 201lb. The new population of pilots has normally distributed weights with a mean of 158lb and a standard deviation of 34.2 lb.
a. If a pilot is randomly selected, find the probability that his weight is between 150lb and 201lb.
b. if the number different pilots are randomly selected, find the probability that their mean weight is between 150lb and 201lb
c. When redesigning the ejection seat, which probability is more relevent ?
Solutions
orchestra answered 1 year agoRelated Solutions
An engineer is going to redesign an ejection seat for an airplane. The seat was designed...
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 159 lb and a standard deviation of 26.6
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______?
(Round to four decimal places as needed.)
B. If 40...
An engineer is going to redesign an ejection seat for an airplane. The seat was designed...
An engineer is going to redesign an ejection seat for an
airplane. The seat was designed for pilots weighing between 130 lb
and 171 lb. The new population of pilots has normally distributed
weights with a mean of 138 lb and a standard deviation of 34.8
lb.
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....
An engineer is going to redesign an ejection seat for an airplane. The seat was designed...
An engineer is going to redesign an ejection seat for an
airplane. The seat was designed for pilots weighing between 120 lb
and 171 lb. The new population of pilots has normally distributed
weights with a mean of 130 lb and a standard deviation of
33.7lb.
a. If a pilot is randomly selected, find the probability that
his weight is between 120 lb and 171 lb.
The probability is approximately __. (Round to four decimal
places as needed.)
b. If...
An engineer is going to redesign an ejection seat for an airplane. The seat was designed...
An engineer is going to redesign an ejection seat for an
airplane. The seat was designed for pilots weighing between 130 lb
and 191 lb. The new population of pilots has normally distributed
weights with a mean of 140 lb and a standard deviation of 26.2
lb.
a. If a pilot is randomly selected, find the probability that
his weight is between 130 lb and 191 lb. The probability is
approximately nothing. (Round to four decimal places as
needed.)
b....
An engineer is going to redesign an ejection seat for an airplane. The seat was designed...
An engineer is going to redesign an ejection seat for an
airplane. The seat was designed for pilots weighing between 130 lb
and 171 lb. The new population of pilots has normally distributed
weights with a mean of 137 lb and a standard deviation of 29.5 lb
.
A) If a pilot is randomly selected, find the
probability that his weight is between 130lb and 171lb. (Round to
four decimal places as needed.)
B) If 37 different pilots are randomly...
An engineer is going to redesign an ejection seat for an airplane. The seat was designed...
An engineer is going to redesign an ejection seat for an
airplane. The seat was designed for pilots weighing between 120 lb
and 161 lb. The new population of pilots has normally distributed
weights with a mean of 129 lb and a standard deviation of 29.1
lb.
a. If a pilot is randomly selected, find the probability that
his weight is between 120 lb and 161 lb. The probability is
approximately _____. (Round to four decimal places as
needed.)
b....
An engineer is going to redesign an ejection seat for an airplane. The seat was designed...
An engineer is going to redesign an ejection seat for an
airplane. The seat was designed for pilots weighing between 150 lb
and 191 lb. The new population of pilots has normally distributed
weights with a mean of 156 lb and a standard deviation of 29.1
lb.
A. If a pilot is randomly selected, find the probability that
his weight is between 150 lb and 191 lb.
The probability is approximately_______?
(Round to four decimal places as needed.)
B. If...
An engineer is going to redesign an ejection seat for an airplane. The seat was designed...
An engineer is going to redesign an ejection seat for an
airplane. The seat was designed for pilots weighing between 140 lb
and 181 lb. The new population of pilots has normally distributed
weights with a mean of 149 lb and a standard deviation of 27.1
lb
a. If a pilot is randomly selected, find the probability that
his weight is between 140 lb and 181 lb.
b. If 31 different pilots are randomly selected, find the
probability that their...
An engineer is going to redesign an ejection seat for an airplane. The seat was designed...
An engineer is going to redesign an ejection seat for an
airplane. The seat was designed for pilots weighing between 140 lb
and 191 lb. The new population of pilots has normally distributed
weights with a mean of 145 lb and a standard deviation of 30.1
lb.
b. If 36 different pilots are randomly selected, find the
probability that their mean weight is between 140 lb and 191 lb.
The probability is approximately nothing. (Round to four decimal
places as...
An engineer is going to redesign an ejection seat for an airplane. The seat was designed...
An engineer is going to redesign an ejection seat for an
airplane. The seat was designed for pilots weighing between 130 lb
and 171 lb. The new population of pilots has normally distributed
weights with a mean of 138 lb and a standard deviation of 31.6
lb.
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....
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