fuel consumption for a Boeing 747 commercial jet in cruising
position has an approximately normal distribution...
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fuel consumption for a Boeing 747 commercial jet in cruisingposition has an approximately normal distribution with a mean of3212 gallons of jet fuel per hour at a standard deviation of 175gallons of jet fuel per hour
a) fuel consumption of a boeing in cruising position is in thelower 20% of the distribution the plane is used for economy tripsfind the maximum fuel consumption in gallons per hour required fora Boeing 747 in cruising position to be use for economy trips
b) when a Boeing 747 is in cruising position what is theprobability that the fuel consumption is more than 3100 gallons perhour?
c) for any Boeing and cruising position what is theprobability that it's fuel consumption is between 3000 and 3500gallons per hour?
d) an airline company has a fleet of 20 Boeing 747 planes findthe probability that the mean fuel consumption of the fleet incruising position will be at most 3300 gallons per hour?
answers:
a) x = 3065
b) 0.7389
c) 0.8374
d) 0.9878
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