Which of the following is a valid statement of a hypothesis test with a normal distribution having mean 7.2 and standard deviation 5/8?

A、H0...μ<=7.2andH1...μ>7.2
B、H0...μ<=7.2andH1...μ>7.2+5/8
C、H0...x<7.2–5/8andH1...x>=7.2+5/8
D、H0...μ<7.2andH1...μ>=7.2
E、H0...μ<=7.2-25/8andH1...μ>7.2