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Using R, construct a 95% confidence interval for the proportion of people who received a gift certificate for Christmas. Provide the numerical value of the Lower Confidence Limit. Round your final answer to four decimal places.

Using R, construct a 95% confidence interval for the proportion of people who received a gift certificate for Christmas. Provide the numerical value of the Lower Confidence Limit. Round your final answer to four 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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[Confidence Intervals] How do you solve this? 

An increasing number of people are giving gift certificates as Christmas presents. To measure the extent of this practice, a random sample of people was asked (survey conducted December 26-29) whether they had received a gift certificate for Christmas. The responses are recorded as 1 = No and 2=Yes. Dataset is available on our Quercus webpage (see Datasets, gift-certificates.txt ↓). Using R, construct a 95% confidence interval for the proportion of people who received a gift certificate for Christmas. Provide the numerical value of the Lower Confidence Limit. Round your final answer to four decimal places.
Transcribed Image Text:An increasing number of people are giving gift certificates as Christmas presents. To measure the extent of this practice, a random sample of people was asked (survey conducted December 26-29) whether they had received a gift certificate for Christmas. The responses are recorded as 1 = No and 2=Yes. Dataset is available on our Quercus webpage (see Datasets, gift-certificates.txt ↓). Using R, construct a 95% confidence interval for the proportion of people who received a gift certificate for Christmas. Provide the numerical value of the Lower Confidence Limit. Round your final answer to four decimal places.
Data from get-certificates.txt file: 12111121121222221 21221111111112211112112 1111121 122211111: 11111111111 2111112211211112111111
Transcribed Image Text:Data from get-certificates.txt file: 12111121121222221 21221111111112211112112 1111121 122211111: 11111111111 2111112211211112111111
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