Quiz: Project #3 This quiz: 23 point(s) possible Question 8 of 8 This question: 5 point(s) possible Submit quiz A federal government agency that is responsible tor setting vehicle fuel economy standards tor automobile manufacturers is conducting research in order to update its fuel economy standards tor the year 2030. Automobile manufacturers, and consumers, are highly interested in what the agency's findings and determinations will be as this Will attect every vehicle in the United States. The federal government agency is very interested in the relationship between the weight ot a vehicle and the vehicle's fuel economy (average miles per gallon (MPG))_ Specifically, the agency is concerned that it the current trend of automobile manufacturers producing heavier new vehicles continues that its fuel economy targets will not be met The agency's research department recently collected data for analysis in order to suppo the agency's upcoming discussion with industry regarding ts proposed 2030 fuel economy standards. The average MPG from a random sample ot 750 vehicles was recently calculated by the agency. The research division also collected the vehicle weight ot these 750 randomly sampled vehicles The Vehicle Number, Type, Vehicle Weight, Average MPG, Fuel Tank Size (Gallons), Engine Size (Liters), and Meet or Not Meet Current Standards data were collected tor these 750 vehicles. StatCrunch Data Set One typically expects that e.g. trucks have a different fuel efficiency than passenger cars. That could be tested by a two-sample t-test, but we do not have two types ot cars, but more than o_ Our two-sample test won't help comparing passenger cars, SUVs and trucks. If we wish to investigate it the average fuel efficiency ot cars differs eeen the three types ot cars, what type ot analysis do we need? o B. o ANOVA F-test Two-sample t-test 12 test tor homogeneity 12 test tor independence What is the null hypothesis ot the test that there is no difference in fuel efficiency between the types ot cars? o B. o C. o D. All medians ot fuel efficiency are equal tor the three types ot cars At least one mean ot fuel efficiency differs from the means of the other two types ot cars All three means ot fuel efficiency are ditterent for the three types ot cars All means ot fuel efficiency are equal for the three types ot cars What is the alternative hypothesis ot the test that there is no difference in fuel efficiency between the types ot cars? o A. o B. o D. At least one mean ot tuel efficiency differs from the means of the other two types ot cars All means ot fuel efficiency are equal for the three types ot cars All three means ot fuel etticiency are ditterent for the three types ot cars All medians ot fuel efficiency are equal tor the three types ot cars