I own a Nissan Rogue that is 5 years old. I want to know if it is still getting good gas mileage compared to when I bought it. The average gas gas mileage for a Nissan rogue is 25.73 miles per gallon with a standard deviation of 0.16. My Nissan Rogue averages 23.5 miles per gallon. How's my Nissan rogue doing compared to the standard? Which test (inferential) statistic is most appropriate to answer this research