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? Homework: Ch 1 to 3 Practice Test Question 26, 3.4.11 Part 1 of 2 HW Score: 71.3%, 49.2 of 69 points Points: 0 of 3 Save The mean finish time for a yearly amateur auto race was 187.17 minutes with a standard deviation of 0.334 minute. The winning car, driven by Ron, finished in 186.55 minutes. The previous year's race had a mean finishing time of 112.4 with a standard deviation of 0.142 minute. The winning car that year, driven by Jane, finished in 111.99 minutes. Find their respective z-scores. Who had the more convincing victory? Ron had a finish time with a z-score of Jane had a finish time with a z-score of (Round to two decimal places as needed.)

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Homework: Ch 1 to 3 Practice Test
Question 26, 3.4.11
Part 1 of 2
HW Score: 71.3%, 49.2 of 69 points
Points: 0 of 3
Save
The mean finish time for a yearly amateur auto race was 187.17 minutes with a standard deviation of 0.334 minute. The winning car, driven by Ron, finished in 186.55 minutes. The previous year's race had a mean finishing time of
112.4 with a standard deviation of 0.142 minute. The winning car that year, driven by Jane, finished in 111.99 minutes. Find their respective z-scores. Who had the more convincing victory?
Ron had a finish time with a z-score of
Jane had a finish time with a z-score of
(Round to two decimal places as needed.)

?
Homework: Ch 1 to 3 Practice Test
Question 26, 3.4.11
Part 1 of 2
HW Score: 71.3%, 49.2 of 69 points
Points: 0 of 3
Save
The mean finish time for a yearly amateur auto race was 187.17 minutes with a standard deviation of 0.334 minute. The winning car, driven by Ron, finished in 186.55 minutes. The previous year's race had a mean finishing time of
112.4 with a standard deviation of 0.142 minute. The winning car that year, driven by Jane, finished in 111.99 minutes. Find their respective z-scores. Who had the more convincing victory?
Ron had a finish time with a z-score of
Jane had a finish time with a z-score of
(Round to two decimal places as needed.)

Added by Keith W.

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