A political candidate has asked you to conduct a poll todetermine the percentage of people who support her.If the candidate only wants a 7% margin of error at a99% confidence level, what size of sample is needed?Give your answer in whole people.Many people think that, in order for a sample to berepresentative of a population, the sample must belarger when the population is larger. In the work wedid here, we did not consider the population size at all.In fact, in all our work with confidence intervals, we'venever considered the size of the population. Reflect onthe relationship between sample size and populationsize when we are doing inference.

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Answered: If the candidate only wants a 7% margin…

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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A political candidate has asked his/her assistant to conduct a poll to determine the percentage of people in the community that supports him/her. If the candidate wants a 10% margin of error at a 95% confidence level, what size of sample is needed? Be sure to round accordingly.The candidate would need to survey people in the community in order to be within a 10% margin of error at a 95% confidence level.
A political candidate has asked his/her assistant to conduct a poll to determine the percentage of people in the community that supports him/her. If the candidate wants a 6% margin of error at a 99% confidence level, what size of sample is needed? Be sure to round accordingly.
A political candidate has asked you to conduct a poll to determine what percentage of people support her.If the candidate only wants a 1.5% margin of error at a 99.5% confidence level, what size of sample is needed?Give your answer in whole people.
A political candidate has asked you to conduct a poll to determine what percentage of people support her.If the candidate only wants a 1% margin of error at a 99% confidence level, what size of sample is needed?Give your answer in whole people. I got 16641 but I am not sure that is correct
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An automobile manufacturer would like to know what proportion of its customersare not satisfied with the service provided by the local dealer.The customer relations department will survey a randomsample of customers and compute a 99% confidence intervalfor the proportion who are not satisfied. (a) Past studies suggest that this proportion will be about0.2. Find the sample size needed if the margin of error of theconfidence interval is to be about 0.015. (b) When the sample of the size found in (a) is actually contacted, 10% of the sample say they are not satisfied. What isthe margin of error of the 99% confidence interval?
A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 4% margin of error at a 95% confidence level, what size of sample is needed? When finding the z-value, round it to four decimal places. The last soulution was incorrect which was 600!!!!
A political candidate has asked you to conduct a poll to determine what percentage of people support her.If the candidate only wants a 6% margin of error at a 95% confidence level, what size of sample is needed?Give your answer in whole people. Submit QuestionQuestion 18
The Labor Bureau wants to estimate, at a 90% confidence level, the proportion of all households that receive welfare. A preliminary sample showed that 19.5% of households in this sample receive welfare. The sample size that would limit the margin of error to be within 0.022 of the population proportion is:

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If the candidate only wants a 7% margin of error at a 99% confidence level, what size of sample is needed? Give your answer in whole people.