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The designer of a 100-point aptitude test has attempted to construct the test so that the standard deviation of scores is 10 points. For a preliminary documentation, 30 randomly selected people are given the test. Their scores are as follows. 83 43 29 37 64 69 79 67 85 61 52 55 70 65 43 64 60 35 76 46 35 43 51 52 61 50 41 87 62 59 Can we conclude that the standard deviation of all scores on the aptitude test is not 10 points? Use \ alpha = 0.10. (Note: x = 1724 and Σx 2 = 106,172.)

The designer of a 100-point aptitude test has attempted to construct the test so that the standard deviation of scores is 10 points. For a preliminary documentation, 30 randomly selected people are given the test. Their scores are as follows. 83 43 29 37 64 69 79 67 85 61 52 55 70 65 43 64 60 35 76 46 35 43 51 52 61 50 41 87 62 59 Can we conclude that the standard deviation of all scores on the aptitude test is not 10 points? Use \ alpha = 0.10. (Note: x = 1724 and Σx 2 = 106,172.)

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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The designer of a 100-point aptitude test has attempted to construct the test so that the standard deviation of scores is 10 points. For a preliminary documentation, 30 randomly selected people are given the test. Their scores are as follows. 83 43 29 37 64 69 79 67 85 61 52 55 70 65 43 64 60 35 76 46 35 43 51 52 61 50 41 87 62 59 Can we conclude that the standard deviation of all scores on the aptitude test is not 10 points? Use \ alpha = 0.10. (Note: x = 1724 and Σx 2 = 106,172.)
Transcribed Image Text:The designer of a 100-point aptitude test has attempted to construct the test so that the standard deviation of scores is 10 points. For a preliminary documentation, 30 randomly selected people are given the test. Their scores are as follows. 83 43 29 37 64 69 79 67 85 61 52 55 70 65 43 64 60 35 76 46 35 43 51 52 61 50 41 87 62 59 Can we conclude that the standard deviation of all scores on the aptitude test is not 10 points? Use \ alpha = 0.10. (Note: x = 1724 and Σx 2 = 106,172.)
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