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A 2011 Gallup survey based on telephone and face-to-face interviews with 4,220 adults in China, aged 15 and older suggests that 30% smoke regularly or occasionally. The following is also noted "one can say with 95% confidence that the maximum margin of sampling error is 2.4 percentage points". Which of the following is true based on the results of this survey? O f the sample size was larger, the margin of error would be larger as well. O f we were to randomly sample another group of 4,220 Chinese adults we would find that exactly 30% of them smoke as well. O We are 95% confident that 27.6 % to 32.4 % of all Chinese adults smoke. O Exactly 30% of all Chinese adults smoke. OWe are 95% confident that 25.2% to 34.8% of all Chinese adults smoke,

A 2011 Gallup survey based on telephone and face-to-face interviews with 4,220 adults in China, aged 15 and older suggests that 30% smoke regularly or occasionally. The following is also noted "one can say with 95% confidence that the maximum margin of sampling error is 2.4 percentage points". Which of the following is true based on the results of this survey? O f the sample size was larger, the margin of error would be larger as well. O f we were to randomly sample another group of 4,220 Chinese adults we would find that exactly 30% of them smoke as well. O We are 95% confident that 27.6 % to 32.4 % of all Chinese adults smoke. O Exactly 30% of all Chinese adults smoke. OWe are 95% confident that 25.2% to 34.8% of all Chinese adults smoke,

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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A 2011 Gallup survey based on telephone and face-to-face interviews with 4,220 adults in China, aged 15 and older suggests that 30% smoke regularly or occasionally. The following is also noted "one can say with 95% confidence that the maximum margin of sampling error is 2.4 percentage points". Which of the following is true based on the results of this survey? O f the sample size was larger, the margin of error would be larger as well. O If we were to randomly sample another group of 4,220 Chinese adults we would find that exactly 30% of them smoke as well. O We are 95% confident that 27.6 % to 32.4 % of all Chinese adults smoke. O Exactly 30% of all Chinese adults smoke. OWe are 95% confident that 25.2% to 34.8% of all Chinese adults smoke.
Transcribed Image Text:A 2011 Gallup survey based on telephone and face-to-face interviews with 4,220 adults in China, aged 15 and older suggests that 30% smoke regularly or occasionally. The following is also noted "one can say with 95% confidence that the maximum margin of sampling error is 2.4 percentage points". Which of the following is true based on the results of this survey? O f the sample size was larger, the margin of error would be larger as well. O If we were to randomly sample another group of 4,220 Chinese adults we would find that exactly 30% of them smoke as well. O We are 95% confident that 27.6 % to 32.4 % of all Chinese adults smoke. O Exactly 30% of all Chinese adults smoke. OWe are 95% confident that 25.2% to 34.8% of all Chinese adults smoke.
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