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Mathematics, 12.02.2020 02:52, kiaunarayne808
The mean finish time for a yearly amateur auto race was 186.94 minutes with a standard deviation of 0.372 minute. The winning car, driven by Sam, finished in 185.85 minutes. The previous year's race had a mean finishing time of 110.7 with a standard deviation of 0.115 minute. The winning car that year, driven by Karen, finished in 110.48 minutes. Find their respective z-scores. Who had the more convincing victory? Sam had a finish time with a z-score of Karen had a finish time with a z-score of (Round to two decimal places as needed.) Which driver had a more convincing victory?
A. Sam had a more convincing victory because of a higher z-score.
B. Karen a more convincing victory because of a higher z-score.
C. Sam had a more convincing victory, because of a lower z-score.
D. Karen a more convincing victory because of a lower z-score.
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