Mathematics, 15.07.2019 17:20, Bryson2148
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 140 lb and a standard deviation of 29.7 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 0.4839. (round to four decimal places as needed.) b. if 32 different pilots are randomly selected, find the probability that their mean weight is between 130 lb and 171 lb. the probability is approximately 0.9712. (round to four decimal places as needed.) c. when redesigning the ejection seat, which probability is more relevant? a. part (b) because the seat performance for a sample of pilots is more important. b. part (a) because the seat performance for a single pilot is more important. c. part (a) because the seat performance for a sample of pilots is more important. d. part (b) because the seat performance for a single pilot is more important.
Answers: 3
Mathematics, 21.06.2019 17:00, jadejordan8888
What properties allow transformation to be used as a problem solving tool
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Mathematics, 21.06.2019 22:00, Jasten
(05.02)a farmer has decided to divide his land area in half in order to plant soy and corn. calculate the area of the entire area so he knows how much soil is needed. a parallelogram with a height of 6 yards and side length 9 yards. the height forms a triangle with the slanted side of the rhombus with a base of 2.5 yards. rhombus is split into a soy half and a corn half. each bag of soil covers 40 square yards. how many bags should the farmer purchase?
Answers: 3
An engineer is going to redesign an ejection seat for an airplane. the seat was designed for pilots...
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