University of Virginia STAT STAT 1120 Hi, can someone help me with these questions please? 1) We expect a…
1) We expect a car’s highway gas mileage to be related to its city gas mileage (in miles per gallon, mpg). Data for all 1137 vehicles in the government’s 2013 Fuel Economy Guide give the regression line
highway mpg = 6.785 + (1.033 × city mpg)
for predicting highway mileage from city mileage.
1.1) What is the slope of this line? (Enter your answer to three decimal places.)
1.2) What is the intercept? (Enter your answer to three decimal places.)
1.3) Find the predicted highway mileage for a car that gets 14 miles per gallon in the city. (Round your answer to two decimal places.)
1.4) Find the predicted highway mileage for a car that gets 25 miles per gallon in the city. (Round your answer to two decimal places.)
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