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e z-score for 1910 is ound to two decimal places as needed.) ez-score for 1280 is Dund to two decimal places as needed.) e z-score for 2240 is ound to two decimal places as needed.) *** e z-score for 1420 is ound to two decimal places as needed.) hich values if any are unusual? Select the correct choice below and, if necessary, fill in the answe

e z-score for 1910 is ound to two decimal places as needed.) ez-score for 1280 is Dund to two decimal places as needed.) e z-score for 2240 is ound to two decimal places as needed.) *** e z-score for 1420 is ound to two decimal places as needed.) hich values if any are unusual? Select the correct choice below and, if necessary, fill in the answe

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1511 and the standard deviation was 312. The test scores of four students selected at random are 1910, 1280, 2240, and 1420. Find the z-scores that correspond to each value and determine whether any of the values are unusual. The z-score for 1910 is (Round to two decimal places as needed.) The z-score for 1280 is (Round to two decimal places as needed.) The Z-score for 2240 is (Round to two decimal places as needed.) The Z-score for 1420 is (Round to two decimal places as needed.) Which values, if any, are unusual? Select the correct choice below and, if necessary, fill in the answer box within your choice OA. The unusual value(s) is/are (Use a comma to separate answers as needed.) OB. None of the values are unusual.
Transcribed Image Text:A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1511 and the standard deviation was 312. The test scores of four students selected at random are 1910, 1280, 2240, and 1420. Find the z-scores that correspond to each value and determine whether any of the values are unusual. The z-score for 1910 is (Round to two decimal places as needed.) The z-score for 1280 is (Round to two decimal places as needed.) The Z-score for 2240 is (Round to two decimal places as needed.) The Z-score for 1420 is (Round to two decimal places as needed.) Which values, if any, are unusual? Select the correct choice below and, if necessary, fill in the answer box within your choice OA. The unusual value(s) is/are (Use a comma to separate answers as needed.) OB. None of the values are unusual.
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What is the answer to part d and what are the unusual values 

A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1511 and the standard deviation was 312. The test scores of four students selected at random are 1910, 1280, 2240, and 1420. Find the z-scores that correspond to each value and determine whether any of the values are unusual. The z-score for 1910 is 1.28 (Round to two decimal places as needed.) The z-score for 1280 is -0.74 (Round to two decimal places as needed.) The z-score for 2240 is 2.34 (Round to two decimal places as needed.) The z-score for 1420 is (Round to two decimal places as needed.) Which values, if any, are unusual? Select the correct choice below and, if necessary, fill in the answer box within your choice. OA. The unusual value(s) is/are (Use a comma to separate answers as needed.) OB. None of the values are unusual. 8 101 S 4 5 1. (0,0) More X
Transcribed Image Text:A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1511 and the standard deviation was 312. The test scores of four students selected at random are 1910, 1280, 2240, and 1420. Find the z-scores that correspond to each value and determine whether any of the values are unusual. The z-score for 1910 is 1.28 (Round to two decimal places as needed.) The z-score for 1280 is -0.74 (Round to two decimal places as needed.) The z-score for 2240 is 2.34 (Round to two decimal places as needed.) The z-score for 1420 is (Round to two decimal places as needed.) Which values, if any, are unusual? Select the correct choice below and, if necessary, fill in the answer box within your choice. OA. The unusual value(s) is/are (Use a comma to separate answers as needed.) OB. None of the values are unusual. 8 101 S 4 5 1. (0,0) More X
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