Answer
Residual = 670.31
China's CO2 emission of 3120 hundred thousand tons is above average for a country with 3260 hundred thousand megawatts of energy production.
Work Step by Step
i) Use the regression equation to find the average CO2 emission for a country that uses 3260 hundred thousand megawatts of energy
$\hat{y} = 0.7676x - 52.6841$
$\hat{y} = 0.7676(3260) - 52.6841$
$\hat{y} = 2449.69$
i) China's Residual = Observed emissions - predicted emissions
=3120 - 2449.69
= 670.31
Since China's residual is positive (i.e its observed emission value is greater than its predicted emission value ), it can be concluded that China's CO2 emission of 3120 hundred thousand tons is above average for a country with 3260 hundred thousand megawatts of energy production.
