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7. It is estimated that 13% of the U.S. student population is left-handed. A simple random sample of 200 students was taken, and 28 of the students were left handed. What sample size would be required to reduce the standard deviation of the sample proportion to one-half the value you found in part c) ? Defend your answer.

7. It is estimated that 13% of the U.S. student population is left-handed. A simple random sample of 200 students was taken, and 28 of the students were left handed. What sample size would be required to reduce the standard deviation of the sample proportion to one-half the value you found in part c) ? Defend your answer.

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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7. It is estimated that 13% of the U.S. student population is left-handed. A simple random sample of 200 students was taken, and 28 of the students were left handed. What sample size would be required to reduce the standard deviation of the sample proportion to one-half the value you found in part c) ? Defend your answer.
Transcribed Image Text:7. It is estimated that 13% of the U.S. student population is left-handed. A simple random sample of 200 students was taken, and 28 of the students were left handed. What sample size would be required to reduce the standard deviation of the sample proportion to one-half the value you found in part c) ? Defend your answer.
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