2. Mrs. Coburn wants to conduct a poll to estimate with 90% confidence the proportion of students in her school who have jobs in the evenings or on weekends. Because she does not have a sample proportion, she plans to use p = 0.5 to determine her sample size. How large a random sample is required to obtain a margin of error of at most 0.03 with 90% confidence? (3 points)
2. Mrs. Coburn wants to conduct a poll to estimate with 90% confidence the proportion of students in her school who have jobs in the evenings or on weekends. Because she does not have a sample proportion, she plans to use p = 0.5 to determine her sample size. How large a random sample is required to obtain a margin of error of at most 0.03 with 90% confidence? (3 points)
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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Confidence interval problem. Please complete on paper
Transcribed Image Text:2. Mrs. Coburn wants to conduct a poll to estimate with 90% confidence the proportion of students in her school who
have jobs in the evenings or on weekends. Because she does not have a sample proportion, she plans to use p = 0.5
to determine her sample size. How large a random sample is required to obtain a margin of error of at most 0.03 with
90% confidence?
(3 points)
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