For admission to graduate school, Kira is taking the physics subject-matter test, and Donna is taking the chernistry subject-matter test. Kira scored 646 on the physics test, and Donna scored 659 on the chemistry test. For each of these subject-matter tests, the distribution of scores is dearly bell-shaped. Scores for the physics test have a population mean of 605 points with a standard deviation of 34 points. Scores for the chemistry test have a population mean of 627 points with a standard deviation of 17 points. (a) Find the z-scores of Kira's performance as a score on the physics test and Donna's performance as a score on the chemistry test. Round your answers to two decimal places. Z-score of Kira's score:| Z-score of Donna's score:|| (b) Relative to her population, who scored higher? Choose the best answer based on the z-scores of the two test scores. O Kira O Donna It is unclear who scored higher relative to her population

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.4: Distributions Of Data
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For admission to graduate school, Kira is taking the physics subject-matter test, and Donna is taking the chemistry subject-matter test. Kira scored 646 on the
physics test, and Donna scored 659 on the chemistry test.
For each of these subject-matter tests, the distribution of scores is clearly bell-shaped. Scores for the physics test have a population mean of 605 points with a
standard deviation of 34 points. Scores for the chemistry test have a population mean of 627 points with a standard deviation of 17 points.
(a) Find the z-scores of Kira's performance as a score on the physics test and Donna's performance as a score on the chemistry
test. Round your answers to two decimal places.
z-score of Kira's score:|
z-score of Donna's score:
(b) Relative to her population, who scored higher?
Choose the best answer based on the z-scores of the two test scores.
O Kira
Donna
It is unclear who scored higher relative to her population
Transcribed Image Text:For admission to graduate school, Kira is taking the physics subject-matter test, and Donna is taking the chemistry subject-matter test. Kira scored 646 on the physics test, and Donna scored 659 on the chemistry test. For each of these subject-matter tests, the distribution of scores is clearly bell-shaped. Scores for the physics test have a population mean of 605 points with a standard deviation of 34 points. Scores for the chemistry test have a population mean of 627 points with a standard deviation of 17 points. (a) Find the z-scores of Kira's performance as a score on the physics test and Donna's performance as a score on the chemistry test. Round your answers to two decimal places. z-score of Kira's score:| z-score of Donna's score: (b) Relative to her population, who scored higher? Choose the best answer based on the z-scores of the two test scores. O Kira Donna It is unclear who scored higher relative to her population
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