Question
Information:During the 1950s and 1960s the average weight of vehicles sold in the US was well over 4000 pounds. There was a dip in the
Information:During the 1950s and 1960s the average weight of vehicles sold in the US was well over 4000 pounds. There was a dip in the average weights in the 1970s and 1980s due possibly to both higher demand for better gas mileage and a worldwide shortage of crude oil. Then in the 1990s and early 2000s the average weight of vehicles had a steady increase. A regression analysis was completed on the average weight of the 10 most commonly sold vehicles in the US from the years 2012 through the year 2020 and yielded the following result, where the independent variable is the year, and the predicted variable is the average weight of the 10 most popular vehicles. Correlation of "average weight", and "year" = r= 0.92?83The regression equation is "average weight" = -124,960.73? + 63.82 (year)
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