Based on a sample of approximately 600 nonsmokers and 200 smokers, estimate the true difference between the proportions choosing "banned". (Use 95% confidence level)

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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The notion of banning smoking from the workplace has been around for a long time.
A Time/Yankelovich poll of 800 adult Americans carried out on April 6-7, 1994 asked:
"Should smoking be banned from workplaces, should there be special smoking areas,
or should there be no restrictions? "
The results are given in the following table.
Nonsmokers Smokers
44%
8%
Banned
Special areas
52%
80%
No restrictions
3%
11%
Based on a sample of approximately 600 nonsmokers and 200 smokers, estimate the
true difference between the proportions choosing "banned". (Use 95% confidence level)
Transcribed Image Text:The notion of banning smoking from the workplace has been around for a long time. A Time/Yankelovich poll of 800 adult Americans carried out on April 6-7, 1994 asked: "Should smoking be banned from workplaces, should there be special smoking areas, or should there be no restrictions? " The results are given in the following table. Nonsmokers Smokers 44% 8% Banned Special areas 52% 80% No restrictions 3% 11% Based on a sample of approximately 600 nonsmokers and 200 smokers, estimate the true difference between the proportions choosing "banned". (Use 95% confidence level)
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