Poll a group
of voters several times. Will the results always
be the same?
Webster Fletcher has been very impressed with
your work for Stephanie Higgins -- so impressed,
in fact, that he has stolen you away from Higgins.
You have now taken a job as Fletcher's chief pollster.
It's midway through the campaign and Fletcher is
concerned about how female Republicans are planning
to vote. Fletcher, having been in politics for quite
a while, knows that polls assume that voters in
the same demographic group will all vote the same
way. He also knows that is not always true.
To provide Fletcher with a look at the data he
needs, you are going to conduct three telephone
polls of Republican women in the city. Each time,
you will call a different group of these women and
"Who will you vote for in the mayoral
Are you Ready to Go to Work?
Webster Fletcher's political profile
the demographic profile of the city
3. Conduct your first telephone poll. To select
a random sample, you need to choose a increment
to base your sample on. Whom would you like to call?