Question 11 1 pts An auto company claims that the fuel efficiency of its sedan has...
Question 15 1 pts An auto company claims that the fuel efficiency of its sedan has been substantially improved. A consumer advocate organization wishes to compare the fuel efficiencies of its sedan between the 2017 and 2019 models. Each of 12 drivers drove both the 2017 and 2019 models on a highway and the fuel efficiency was measured (in miles per gallon). The same driver drove the same path for both the models. Driver Model 1 2019 31.1 324 31.3...
Suppose the following data show the percentage of 17- to 24-year-olds who are attending college in several metropolitan statistical areas in four geographic regions of the United States. Northeast Midwest South West 28.6 37.5 60.2 16.3 40.0 33.1 37.9 33.7 32.3 23.0 28.4 22.1 47.0 43.5 41.9 13.2 33.1 32.3 34.0 43.4 15.2 57.6 18.3 26.1 37.2 31.1 30.3 57.0 36.6 64.6 67.6 14.3 38.2 26.9 31.9 36.8 58.1 54.7 29.6 28.9 61.3 78.3 38.4 17.4 42.2 29.8 31.5 75.2...