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The mean finish time for a yearly amateur auto race was 185 42 minutes with...

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The mean finish time for a yearly amateur auto race was 185 42 minutes with a standard deviation of 0 375 minute The winning car driven by Frank finished in 184 95 minutes The previous year s race had a mean finishing time of 110 1 with a standard deviation of 0 134 minute The winning car that year driven by Karla finished in 109 81 minutes Find their respective z scores Who had the more convincing victory Frank had a finish time with a z score of Karlahad a finish time with a z score of Round to two decimal places as needed Which driver had a more convincing victory OA Karla had a more convincing victory because of a lower z score OB Frank a more convincing victory because of a higher z score OC Karla had a more convincing victory because of a higher z score OD Frank a more convincing victory because of a lower z score

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