MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Please show every step to solve the problem.
A statistics teacher believes that the final exam grades for her business statistics class have a
normal distribution with a mean of 82 and a standard deviation of 8.
Find the score which separates the top 10% of the scores from the lowest 90% of the
scores.
b. The teacher plans to give all students who score in the top 10% of scores an A. Will a
student swho seoned a 90 on the exar receive an A" Explain.
c. Find the score which separates the lowest 20% of the scores from the highest 80% of the
SUDUS.
d. The teacher plans to give all students who score in the lowest 10%, of scores an F. Will a
student who scored a 65 on the exam receive an F2 Explam.
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Transcribed Image Text:A statistics teacher believes that the final exam grades for her business statistics class have a normal distribution with a mean of 82 and a standard deviation of 8. Find the score which separates the top 10% of the scores from the lowest 90% of the scores. b. The teacher plans to give all students who score in the top 10% of scores an A. Will a student swho seoned a 90 on the exar receive an A" Explain. c. Find the score which separates the lowest 20% of the scores from the highest 80% of the SUDUS. d. The teacher plans to give all students who score in the lowest 10%, of scores an F. Will a student who scored a 65 on the exam receive an F2 Explam.
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