Z-Score.1..5

The mean finish time for a yearly amateur auto race was 185.92 minutes with a standard deviation of 0.395 minute. The winning car, driven by Frank, finished in 185.16 minutes. The previous year's race had a mean finishing time of 112 5 with a standard deviation of 0.139 minute. The winning car that year, driven by Amber, finished in 112. 14 minutes. Find their respective z-scores. Who had the more convincing victory? Frank had a finish time with a z-score of Amber had a finish time with a z-score of (Round to two decimal places as needed.) Which driver had a more convincing victory? O A. Frank a more convincing victory because of a lower z-score. O B. Amber had a more convincing victory.because of a lower z-score. O C. Amber had a more convincing victory because of a higher z-score. O D. Frank a more convincing victory because of a higher z-score