An exam produced grades with a mean score of 74.2 and a standard deviation of 11.5. Find

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An exam produced grades with a mean score of 74.2 and a standard deviation of 11.5. Find the z-score for each test score x:
a. x = 54
b. x = 68
c. x = 79
d. x = 93

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Elementary Statistics

ISBN: 9780538733502

11th Edition

Authors: Robert R. Johnson, Patricia J. Kuby

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Question Posted: Aug 27, 2015 06:59 AM

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An exam produced grades with a mean score of 74.2 and a standard deviation of 11.5. Find

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z x meanstdev a for x 54 z 54 ...View the full answer

Elementary Statistics

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