3. An industry is considering the revision of its retirement policy and wants to estimatethe proportion of employees that favor the new policy. The industry consists of 87separate plants located throughout the United States. Because the results must beobtained quickly and with little cost, the industry decides to use cluster sampling witheach plant as a cluster. A simple random sample of 15 plants is selected, and theopinions of the employees in these plants are obtained by questionnaire. The resultsare as shown in the accompanying table.Number ofemployees, miNumber favoringnew policy, aiPlant151422625334940473455101634831 765388493097354106145115851125229136546144937155542a. Estimate the proportion of employees in the industry who favor the newretirement policy, and place a bound on the error of estimation.b. The industry modified its retirement policy after obtaining the results of thesurvey. It now wants to estimate the proportion of employees in favor of themodified policy. How many plants should be sampled to have a bound of 0.08on the error of estimation? Use the data above to approximate the results ofthe new survey.

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Answered: 3. An industry is considering the…

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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