Math 14

The mean finish time for a yearly amateur auto race was 186.82 minutes with a standard deviation of 0.374 minute. The winning car, driven by Ron, finished in 185.87 minutes. The previous year's race had a mean finishing time of 110.4 with a standard deviation of 0.124 minute. The winning car that year, driven by Nina, finished in 110.24 minutes. Find their respective z-scores. Who had the more convincing victory? Ron had a finish time with a z-score of Nina 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. Nina a more convincing victory because of a higher z-score. O B. Ron had a more convincing victory because of a lower z-score. O C. Ron had a more convincing victory because of a higher z-score. O D. Nina a more convincing victory because of a lower z-score