Fuel economy Examine the average fuel economy of several 2010 model vehicles listed below. a) Find and interpret a 95% confidence interval for the gas mileage of 2010 vehicles.  b) Do you think that...

Fuel economy Examine the average fuel economy of several 2010 model vehicles listed below.

a) Find and interpret a 95% confidence interval for the gas mileage of 2010 vehicles.

 b) Do you think that this confidence interval captures the mean gas mileage for all 2010 vehicles?