An auto maker estimates that the mean gas mileage of its sports utility vehicle is at least 20 miles per gallon. A random sample
of 36 such vehicles had a mean of 18 miles per gallon and a standard deviation of 5 miles per gallon. At α = .01 can you reject the auto maker's claim?
My answer Is The 4th Statement because a positive number is on the other side of the number line as the negative number and if it were just negative 5 and positive 5 it would be correct. I’m just trying the best I can to help you .
