The mean finish time for a yearly amateur auto race was 187.07 minutes with a standard deviation of 0.379 minute. The winning car, driven by Josh, finished in 186.08 minutes. The previous year's race had a mean finishing time of 112.9 with a standard deviation of 0.114 minute. The winning car that year, driven by Sally, finished in 112.67 minutes. Find their respective z-scores. Who had the more convincing victory? Josh had a finish time with a z-score of Sally had a finish time with a z-score of (Round to two decimal places as needed.)

MATLAB: An Introduction with Applications
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The mean finish time for a yearly amateur auto race was 187.07 minutes with a standard deviation of 0.379 minute. The winning car, driven by Josh, finished in
186.08 minutes. The previous year's race had a mean finishing time of 112.9 with a standard deviation of 0.114 minute. The winning car that year, driven by Sally,
finished in 112.67 minutes. Find their respective z-scores. Who had the more convincing victory?
Josh had a finish time with a z-score of
Sally had a finish time with a z-score of
(Round to two decimal places as needed.)
Transcribed Image Text:The mean finish time for a yearly amateur auto race was 187.07 minutes with a standard deviation of 0.379 minute. The winning car, driven by Josh, finished in 186.08 minutes. The previous year's race had a mean finishing time of 112.9 with a standard deviation of 0.114 minute. The winning car that year, driven by Sally, finished in 112.67 minutes. Find their respective z-scores. Who had the more convincing victory? Josh had a finish time with a z-score of Sally had a finish time with a z-score of (Round to two decimal places as needed.)
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