Mathematics, 27.08.2019 17:10, alondrabdiaz586
Unoccupied seats on flights cause airlines to lose revenue. suppose a large airline wants to estimate its average number of unoccupied seats per flight over the past year. 225 flight records are randomly selected and the number of unoccupied seats is noted, with a sample mean of 11.6 seats and a standard deviation of 4.1 seats. how many flights should we select if we wish to estimate μ to within 5 seats and be 95 percent confident?
Answers: 3
Mathematics, 21.06.2019 19:10, cottoncandy465
Asystem of equations has 1 solution. if 4x-y=5 is one of the equations , which could be the other equation ?
Answers: 1
Mathematics, 22.06.2019 00:00, jonmorton159
Need plz been trying to do it for a long time and still haven’t succeeded
Answers: 1
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