Answered: 7. David and Yukiko are each attempting…

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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7. David and Yukiko are each attempting to estimate the proportion of OSU students who live more than 20 miles away from campus. David surveys a random sample of n = 472 students and finds that 227 of the students in his sample live more than 20 miles from campus. Yukiko surveys a random sample of n = 1025 students and finds that 492 of the students in her sample live more than 20 miles from campus. If David and Yukiko each construct a 95% confidence interval based on their respective sample data, we’d expect David’s interval to have A. the same margin of error as Yukiko’s interval. B. a larger margin of error than Yukiko’s interval because his sample size is smaller than Yukiko’s sample size. C. a smaller margin of error than Yukiko’s interval because his sample size is smaller than Yukiko’s sample size. D. a larger margin of error than Yukiko’s interval because, compared to Yukiko’s sample, a smaller number of the students surveyed by David said they live more than 20 miles from campus. E. a smaller margin of error than Yukiko’s interval because, compared to Yukiko’s sample, a smaller number of the students surveyed by David said they

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