The fuel economy of a 2011 Lexus RX 350 2WD 6 cylinder 3.5 L automatic 5-speed using premium fuel is a normally distributed random variable with a mean of μ = 25.5 MPG and a standard deviation of σ = 2.25 MPG. (a) What is the standard error of 2formula74.mml , the mean from a random sample of 25 fill-ups by one driver? (Round your answer to 4 decimal places.) Standard error of 2formula74.mml (b) Within what interval would you expect the sample mean to fall, with 98 percent probability? (Round your answers to 4 decimal places.) The interval is from.