Question

In: Statistics and Probability

fuel consumption for a Boeing 747 commercial jet in cruising position has an approximately normal distribution...

fuel consumption for a Boeing 747 commercial jet in cruising position has an approximately normal distribution with a mean of 3212 gallons of jet fuel per hour at a standard deviation of 175 gallons of jet fuel per hour

a) fuel consumption of a boeing in cruising position is in the lower 20% of the distribution the plane is used for economy trips find the maximum fuel consumption in gallons per hour required for a Boeing 747 in cruising position to be use for economy trips

b) when a Boeing 747 is in cruising position what is the probability that the fuel consumption is more than 3100 gallons per hour?

c) for any Boeing and cruising position what is the probability that it's fuel consumption is between 3000 and 3500 gallons per hour?

d) an airline company has a fleet of 20 Boeing 747 planes find the probability that the mean fuel consumption of the fleet in cruising position will be at most 3300 gallons per hour?

answers:

a) x = 3065

b) 0.7389

c) 0.8374

d) 0.9878

Expert Solution

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orchestra answered 1 year ago

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