Answered: Gallup At its website (www.gallup.com)…

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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Gallup At its website (www.gallup.com) the Gallup Poll
publishes results of a new survey each day. Scroll down
to the end, and you’ll find a statement that includes words
such as these:

Results are based on telephone interviews with 1,008 na-
tional adults, aged 18 and older, conducted January 3–5,

2013. . . . In addition to sampling error, question word-
ing and practical difficulties in conducting surveys can

introduce error or bias into the findings of public opinion
polls.
a) For this survey, identify the population of interest.

b) Gallup performs its surveys by phoning numbers gen-
erated at random by a computer program. What is the

sampling frame?
c) What problems, if any, would you be concerned about
in matching the sampling frame with the population?

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