(a) An automotive engineer is investigating two different types of metering devices for an electronic fuel injection system to determine whether they differ in their fuel mileage performance. The system is installed on 10 different cars, and a test is run with each metering device on each car. The data is provided below: Metering Device Car 1 2 1 17.6 16.8 2 19.4 20.0 18.2 17.6 17.1 16.4 15.3 16.0 15.9 15.9 CO 16.3 16.5 18.0 18.4 17.3 16.4 10 19.1 20.1 (i) Is there a significant difference between the means of the two metering devices? Use a = 0.05. Interpret the result in the context of the problem. Opera (12 marks)