The miles per gallon (mpg) for each of 20 medium-sized cars selected from a production line during the month of March are listed below. 23.2 21.4 23.7 23.8 27.1 23.3 26.0 24.8 24.5 24.3 25.0 22.3 23.0 24.7 (a) Find the z-scores for the largest measurement. (Round your answers to two decimal places.) Find the z-scores for the smallest measurement. (Round your answers to two decimal places.) Would you consider them to be outliers? Why or why not? Q Since the z-score for the smallest observation is greater than 3 in absolute value, the smallest observation is an outlier: The largest observation is not. 0 Since both z-scores are greater than 3 in absolute value, the measurements are considered outliers. 0 Since the z-score for the largest observation is greater than 3 in absolute value, the largest observation is an outlier. The smallest observation is not. 0 Since neither z-score is greater than 3 in absolute value, the measurements are not considered outliers. (b) Find the median (in mpg). mp9 Find the upper quartile (in mpg). mpg Find the lower quartile (in mpg). mpg