Assume that a sample is used to estimate a population mean . Find the 80% confidence interval for a sample of size
670 with a mean of 49.2 and a standard deviation of 21.4. Enter your answer as a tri-linear inequality accurate to 3
decimal places.
Lionse
Points possible: 1

An airplane consumes fuel at a constant rate while flying through clear skies, and it consumes fuel at a rate of 64 gallons per minute while flying through rain clouds. let c represent the number of minutes the plane can fly through clear skies and r represent the number of minutes the plane can fly through rain clouds without consuming all of its fuel. 56c+64r < 900056c+64r< 9000 according to the inequality, at what rate does the airplane consume fuel while flying through clear skies, and how much fuel does it have before takeoff? the airplane consumes fuel at a rate of gallons per minute while flying through clear skies, and it has gallons of fuel before takeoff. does the airplane have enough fuel to fly for 60 minutes through clear skies and 90 minutes through rain clouds?

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4