The mean finish time for a yearly amateur auto race was 187.97 minutes with a standard deviation of 0.387 minute. The winning car, driven by Thomas, finished in 187.49 minutes. The previous year's race had a mean finishing time of 112.3 with a standard deviation of 0.139 minute. The winning car that year, driven by Karla, finished in 112.02 minutes. Find their respective z-scores. Who had the more convincing victory? . . . . . Thomas had a finish time with a z-score of Karla had a finish time with a z-score of (Round to two decimal places as needed.)