Data from a representative sample were used to estimate that 33% of all computer users in a recent year had tried to get on a Wi-Fi network that was not their own in order to save money. You decide to conduct asurvey to estimate this proportion for the current year. What is the required sample size if you want to estimate this proportion with a margin of error of 0.04? Calculate the required sample size first using 0.33 as apreliminary estimate of p. (Round your answer up to the nearest integer.)USE SALTCalculate the required sample size using the conservative value of 0.5. (Round your answer up to the nearest integer.)How do the two sample sizes compare?The sample size computed using the preliminary estimate is --Select-- the sample size computed using the conservative value.What sample size would you recommend for this study? (Round your sample size up to the nearest integer.)The sample size ofgreater than 0.04 if p <Submit Answershould be used for this study because it will guarantee a margin of error of no greater than 0.04. The other sample size computed will only guarantee a margin of error noor if p >

It is given that margin of error (E) is 0.04 and assumed that the confidence level is 95%.(No…

Answered: Data from a representative sample were…

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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You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable preliminary estimation for the population proportion. You would like to be 95% confident that you estimate is within 2.5% of the true population proportion. How large of a sample size is required?n = ------------- NOTE: PLEASE PUT ANSWERS IN BOLD. PLEASE SUBMIT CORRECT ANSWERS
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 23%. You would like to be 98% confident that your estimate is within 5% of the true population proportion. How large of a sample size is required? Do not round mid-calculation.n =
A pollster wishes to estimate, with 95% confidence, the proportion of people who believe that recent changes in climate are primarily due to human activity.Find the minimum sample size necessary to achieve a margin of error of less than 3%. Assuming no previous estimates are available. Round your answer up to the next integer. Assuming a previous estimate of 0.70. Round your answer up to the next integer.
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You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 85%. You would like to be 95% confident that your estimate is within 3.5% of the true population proportion. How large of a sample size is required? Do not round mid- calculation. Submit Question IN
Data from a representative sample were used to estimate that 33% of all computer users in a recent year had tried to get on a Wi-Fi network that was not their own in order to save money. You decide to conduct a survey to estimate this proportion for the current year. What is the required sample size if you want to estimate this proportion with a margin of error of 0.04? Calculate the required sample size first using 0.33 as a preliminary estimate of p. (Round your answer up to the nearest integer.) The sample size of _____ should be used for this study because it will guarantee a margin of error of no greater than 0.04. The other sample size computed will only guarantee a margin of error no greater than 0.04 if p < _____ or if p > ______ .
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 81%. You would like to be 99% confident that your estimate is within 5% of the true population proportion. How large of a sample size is required? Do not round mid- calculation. n =
Based on historical data at Portland State University, we believe that 44% of first year students do not visit their advisors regularly. For this year, you would like to obtain a new sample to estimate the proportion of first year students who do not visit their advisors regularly. You would like to be 99% confident that your estimate is within 4% of the true population proportion. How large of a sample size is required? Do not round mid-calculation. Give answer in whole people. n=
You want to obtain a sample to estimate the proportion of a population that possess a particular genetic marker. Based on previous evidence, you believe approximately 69% of the population have the genetic marker. You would like to be 95% confident that your estimate is within 5% of the true population proportion. Do not round mid-calculation and be careful when you round your answer. How large of a sample size is required? n=
In spite of the potential safety hazards, some people would like to have an Internet connection in their car. A preliminary survey of adult Americans has estimated this proportion to be somewhere around 0.30. Use the given preliminary estimate to determine the sample size required to estimate this proportion with a margin of error of 0.05.
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 0.34. You would like to be 90% confident that your esimate is within 1.5% of the true population proportion. How large of a sample size is required
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