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Obtain the required confidence interval for the difference between twe independent simple random samples have been selected from the two 24) In a random sample of 36 Democrats from one city, 18 approv sample of 48 Republicans from the city, 28 approved of the ma

Obtain the required confidence interval for the difference between twe independent simple random samples have been selected from the two 24) In a random sample of 36 Democrats from one city, 18 approv sample of 48 Republicans from the city, 28 approved of the ma

MATLAB: An Introduction with Applications
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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Obtain the required confidence interval for the difference between two population proportions. Assume that independent simple random samples have been selected from the two populations. 24) In a random sample of 36 Democrats from one city, 18 approved of the mayor's performance. In a random sample of 48 Republicans from the city, 28 approved of the mayor's performance. Find a 90% confidence interval for the difference between the proportions of Democrats and Republicans who approve of the mayor's performance.
Transcribed Image Text:Obtain the required confidence interval for the difference between two population proportions. Assume that independent simple random samples have been selected from the two populations. 24) In a random sample of 36 Democrats from one city, 18 approved of the mayor's performance. In a random sample of 48 Republicans from the city, 28 approved of the mayor's performance. Find a 90% confidence interval for the difference between the proportions of Democrats and Republicans who approve of the mayor's performance.
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