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Assume that a sample is used to estimate a population proportion p. Find the 90% confidence interval for a sample of size 240 with 98 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.

Assume that a sample is used to estimate a population proportion p. Find the 90% confidence interval for a sample of size 240 with 98 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.

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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Assume that a sample is used to estimate a population proportion p. Find the 90% confidence interval for a sample of size 240 with 98 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places.

 

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Given,sample size(n)=240no.of successes(X)=98sample proportion(p^)=Xnsample proportion(p^)=98240sample proportion(p^)=0.40831-p^=1-0.4083=0.5917α=1-0.90=0.1α2=0.05Z0.05=1.645

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