subject
Mathematics, 09.04.2020 18:38 karlyisaunicorn

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 $179 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

ansver
Answers: 3

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 21:00, asiamuhammad6
Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5
Answers: 2
image
Mathematics, 22.06.2019 01:30, mariaguadalupeduranc
In 2000, for a certain region, 27.1% of incoming college freshman characterized their political views as liberal, 23.1% as moderate, and 49.8% as conservative. for this year, a random sample of 400 incoming college freshman yielded the frequency distribution for political views shown below. a. determine the mode of the data. b. decide whether it would be appropriate to use either the mean or the median as a measure of center. explain your answer. political view frequency liberal 118 moderate 98 conservative 184 a. choose the correct answer below. select all that apply. a. the mode is moderate. b. the mode is liberal. c. the mode is conservative. d. there is no mode.
Answers: 1
image
Mathematics, 22.06.2019 02:00, uc22912
Aculinary club earns $1360 from a dinner service. they sold 45 adult meals and 80 student meals. an adult meal costs twice as much as a student meal. what is the cost of an adult meal?
Answers: 1
image
Mathematics, 22.06.2019 02:00, embersongracie
Asix-sided die of unknown bias is rolled 20 times, and the number 3 comes up 6 times. in the next three rounds (the die is rolled 20 times in each round), the number 3 comes up 6 times, 5 times, and 7 times. the experimental probability of rolling a 3 is 10 %, which is approximately % more than its theoretical probability. (round off your answers to the nearest integer.)
Answers: 1
You know the right answer?
According to the Air Transport Association of America, the average operating cost of an MD-80 jet ai...

Questions in other subjects:

Konu
Mathematics, 20.04.2020 23:49