Answered: A Gallup survey based on telephone and…

Name: A Gallup survey based on telephone and face-to-face interviews with 4,
Uploaded: 2024-03-20T07:07:00.000Z
Channel: Bartleby
Description: A 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 sa

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Concept explainers

Topic Video

Question

A 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 2.2 percentage points". Which of the following is true based on the results of this survey?

a. We are 95% confident that 27.8 % to 32.2 % of all Chinese adults smoke.

b. If the sample size was larger, the margin of error would be larger as well.

c.We are 95% confident that 25.6% to 34.4% of all Chinese adults smoke.

d. Exactly 30% of all Chinese adults smoke.

e. If we were to randomly sample another group of 4,220 Chinese adults we would find that exactly 30% of them smoke as well.

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Hypothesis Tests and Confidence Intervals for Proportions$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions