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are single or married. Her f Population 1 Calculate the upper and low population proportions, p1

are single or married. Her f Population 1 Calculate the upper and low population proportions, p1

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
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are single or married. Her f Population 1 Calculate the upper and low population proportions, p1
Transcribed Image Text:are single or married. Her f Population 1 Calculate the upper and low population proportions, p1
Expert Solution
Step 1

The objective is to construct the 95% confidence interval for the difference in two population proportions p1-p2.

Given that,

n1=133,x1=47 and p1^ = 0.35338

n2=140,x2= 48 and p2^= 0.34286

The confidence level is,

C=95%=95/100=0.95

The level of significance is,

α= 1-C=1-0.95=0.05

From standard normal table, at 0.05 level of significance the two- tailed critical value is,

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