2. Eagle fuel advertises that it can produce a high gas mileage if it is used. A car usually averages 10.75 km/L with a

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2 Eagle Fuel Advertises That It Can Produce A High Gas Mileage If It Is Used A Car Usually Averages 10 75 Km L With A 1 (62.24 KiB) Viewed 91 times

2. Eagle fuel advertises that it can produce a high gas mileage if it is used. A car usually averages 10.75 km/L with a standard deviation of 1.2 km/l when driven on a highway. In a study, thirty similar cars are sent on a road trip to test its mileage when they run Eagle fuel. It turns out that the thirty cars averaged X = 10.8 km/l. At the u = 5% level of significance, is there sufficient evidence to suggest that Eagle fuel results in a higher gas mileage? Solution. (Hint: Ho u = 10.75: H.: u >10.75),