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A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1463 and the standard deviation was 314. The test scores of four students selected at random are 1870, 1220, 2190, and 1340. Find the z-scores that correspond to each value and determine whether any of the values are unusual. The z-score for 1870 is 1.30 (Round to two decimal places as needed.). The z-score for 1220 is -0.77 (Round to two decimal places as needed.). The z-score for 2190 is 2.32 (Round to two decimal places as needed.). The z-score for 1340 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. 80 808 # " I' || MacBook Air CD A √i V 1₁ DII F8 (0,8) More DD F9 J F10 a F11 § F12 Next

A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1463 and the standard deviation was 314. The test scores of four students selected at random are 1870, 1220, 2190, and 1340. Find the z-scores that correspond to each value and determine whether any of the values are unusual. The z-score for 1870 is 1.30 (Round to two decimal places as needed.). The z-score for 1220 is -0.77 (Round to two decimal places as needed.). The z-score for 2190 is 2.32 (Round to two decimal places as needed.). The z-score for 1340 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. 80 808 # " I' || MacBook Air CD A √i V 1₁ DII F8 (0,8) More DD F9 J F10 a F11 § F12 Next

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 1463 and the standard deviation was 314. The test scores of four students selected at random are 1870, 1220, 2190, and 1340. Find the z-scores that correspond to each value and determine whether any of the values are unusual. The Z-score for 1870 is 1.30 (Round to two decimal places as needed.) The Z-score for 1220 is -0.77- (Round to two decimal places as needed.) The Z-score for 2190 is 2.32 (Round to two decimal places as needed.) The Z-score for 1340 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. F2 80 F3 000 000 F4 F5 # I' |0| MacBook Air F6 << F7 V 1. DII F8 (0,0) More DD F9 F10 4) F11 F12 Next x
Transcribed Image Text:A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1463 and the standard deviation was 314. The test scores of four students selected at random are 1870, 1220, 2190, and 1340. Find the z-scores that correspond to each value and determine whether any of the values are unusual. The Z-score for 1870 is 1.30 (Round to two decimal places as needed.) The Z-score for 1220 is -0.77- (Round to two decimal places as needed.) The Z-score for 2190 is 2.32 (Round to two decimal places as needed.) The Z-score for 1340 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. F2 80 F3 000 000 F4 F5 # I' |0| MacBook Air F6 << F7 V 1. DII F8 (0,0) More DD F9 F10 4) F11 F12 Next x
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