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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Question
A student wants to survey the sophomore class of 200 students about whether the school should require uniforms. A random sample of 50 sophomores is surveyed and asked whether they support the school adopting uniforms. Of the 50 sophomores, 12 say they would favor school uniforms. Assuming the conditions for inference have been met, what is the 90% confidence interval for the true proportion of sophomores who favor the adoption of uniforms? 0.24 plus-or-minus 1.96 StartRoot StartFraction 0.24 (1 minus 0.24) Over 200 EndFraction EndRoot 0.76 plus-or-minus 1.96 StartRoot StartFraction 0.76 (1 minus 0.24) Over 200 EndFraction EndRoot 0.24 plus-or-minus 1.65 StartRoot StartFraction 0.24 (1 minus 0.24) Over 50 EndFraction EndRoot 0.76 plus-or-minus 1.95 StartRoot StartFraction 0.76 (1 minus 0.76) Over 50 EndFraction EndRoot
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