According to the Air Transport Association of America, the average operating cost of an MD-80 jet airliner is $2,087 per hour. Suppose the operating costs of an MD-80 jet airliner are normally...

According to the Air Transport Association of America, the average operating cost of an MD-80 jet airliner is $2,087 per hour. Suppose the operating costs of an MD-80 jet airliner are normally distributed with a standard deviation of $173 per hour.

(Round the value of z to 2 decimal places. Round your answers to 2 decimal places.)

(a)At what operating cost would only 23% of the operating costs be less?

$enter the dollar amount at which only 23% of the operating costs would be less

(b)At what operating cost would 65% of the operating costs be more?

$enter the dollar amount at which 65% of the operating costs would be more

(c)What operating cost would be more than 85% of operating costs?

$enter the dollar amount that would be more than 85% of operating costs

Jun 03, 2022

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According to the Air Transport Association of America, the average operating cost of an MD-80 jet airliner is $2,087 per hour. Suppose the operating costs of an MD-80 jet airliner are normally...

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