Mathematics, 03.02.2020 23:50 drew1146
the mean finish time for a yearly amateur auto race was 185.93 minutes with a standard deviation of 0.398 minute. the winning car, driven by hank, finished in 184.82 minutes. the previous year's race had a mean finishing time of 112.6 with a standard deviation of 0.149 minute. the winning car that year, driven by julie, finished in 112.31 minutes. find their respective z-scores. who had the more convincing victory?
hank had a finish time with a z-score of
julie had a finish time with a z-score of
(round to two decimal places as needed.)
which driver had a more convincing victory?
a.
hank had a more convincing victory because of a lower z-score.
b.
julie a more convincing victory because of a lower z-score.
c.
hank had a more convincing victory because of a higher z-score.
d.
julie a more convincing victory because of a higher z-score.
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the mean finish time for a yearly amateur auto race was 185.93 minutes with a standard deviation of...
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