(Data file: fuel2001) In the fuel consumption data, consider fitting the mean function For this regression, we find σˆ = XXXXXXXXXXwith 46 df, and the diagnostic statistics for four states and the...

(Data file: fuel2001) In the fuel consumption data, consider fitting the mean function

For this regression, we find σˆ = 64.891 with 46 df, and the diagnostic statistics for four states and the District of Columbia were the following:

Compute Di and ti for each of these cases, and test for one outlier. Which is most influential?