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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 b. The teacher plans to give all students who score in the top 10% of scores an A. Will a ΕΠΙΙΕΠΙ ΑΝΤΙΚΉ ΣΕΜet 90 entir exaITI receive Η ΔΕ ΧΡΗΙ. το δια της και which attles tis our sures in the ichest stal the ΣΠΕΤΣΕΤΕ ΣΤΑΤΙΣΤΙΚΗ ΚΑΤΗ

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 b. The teacher plans to give all students who score in the top 10% of scores an A. Will a ΕΠΙΙΕΠΙ ΑΝΤΙΚΉ ΣΕΜet 90 entir exaITI receive Η ΔΕ ΧΡΗΙ. το δια της και which attles tis our sures in the ichest stal the ΣΠΕΤΣΕΤΕ ΣΤΑΤΙΣΤΙΚΗ ΚΑΤΗ

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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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.
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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