An environmentalist wants to find out the fraction of oil tankers that have spills each month. In an earlier study, the population proportion was estimated to be 0.270.27. How large a sample would be required in order to estimate the fraction of oil tankers that have spills each month at the 98%98% confidence level with an error of at most 0.030.03? Round your answer up to the next integer.
An environmentalist wants to find out the fraction of oil tankers that have spills each month. In an earlier study, the population proportion was estimated to be 0.270.27. How large a sample would be required in order to estimate the fraction of oil tankers that have spills each month at the 98%98% confidence level with an error of at most 0.030.03? Round your answer up to the next integer.
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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An environmentalist wants to find out the fraction of oil tankers that have spills each month. In an earlier study, the population proportion was estimated to be 0.270.27.
How large a sample would be required in order to estimate the fraction of oil tankers that have spills each month at the 98%98% confidence level with an error of at most 0.030.03? Round your answer up to the next integer.
Expert Solution
Step 1: Information given is
population proportion(p)=0.27
Margin of error(E)=0.03
confidence level=98%
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