Question
(5 points) James and Julia have completed a test. Scores on this test were normally distributed with a mean of 55 and standard deviation of
(5 points) James and Julia have completed a test. Scores on this test were normally distributed with a mean of 55 and standard deviation of 7.
(a) Julia's score on the test was 77. Find the z-score equivalent for her test-score and estimate the proportion of students from the class she outscored (i.e., proportion of students with a lower score).
(b) James's score put him at the 78th percentile of the class. What's his test score?
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Transportation A Global Supply Chain Perspective
Authors: Robert A. Novack, Brian Gibson, Yoshinori Suzuki, John J. Coyle
9th Edition
1337406643, 9781337406642
