test bank sampling design and analysis 2nd edition
solution manual sampling design and analysis 2nd e
sampling design and analysis 2nd edition mcqs
test bank
Written for
Sampling Design and Analysis
All documents for this subject (6)
Seller
Follow
ASolution
Reviews received
Content preview
Sampling Design and Analysis 2nd Edition
Sampling Design and Analysis 2nd Edition
Chapter 1
Surveys
1.1 Introduction
Surveys are used to gather data on a usually small subset of a population.
Surveys are widely used by a variety of professions and disciplines including
but not limited to national statistical offices (NSO); environmental, behavioral,
and social sciences; and polling market research firms. The vast majority of
citizens are familiar with the concept of polls. Indeed, who has not been
selected, at least once, to participate in an opinion poll during an election
campaign? However, the use of surveys is not limited to opinion polls.
Surveys are used in a variety of fields such as oil exploration and mining
research; tax audits of taxpayers are generally conducted by survey; foresters
use forest surveys to obtain information on the condition of a given forest and
monitor any changes; etc.
In this course, we will often use the expression national statistical office. This
refers to the leading statistical agency within a national statistical system.
Table 1.1 lists a few national statistical offices around the world.
Country National statistical office
Canada Statistics Canada
Solution Manual Page 1
, Sampling Design and Analysis 2nd Edition
U.S.A U.S. Census Bureau and Bureau of Labor Statistics
France Institut national de la statistique et des études économiques
Australia Australian Bureau of Statistics
TABLE 1.1: National statistical offices around the world
We begin by defining some basic concepts that will serve as a starting point
for this course. The material covered in this chapter is partly based on the
excellent guide "Survey Methods and Practices" published by Statistics Canada.
1.2 Basic definitions
Definition 1. A survey is any activity that collects information in an organized
and methodical manner about characteristics of interest from some or all units of a
population using well-defined concepts, methods and procedures and compiles such
information into a useful summary form.
Solution Manual Page 2
, Sampling Design and Analysis 2nd Edition
Definition 2. An element, also called an observation unit, is an object on which
characteristics of interest will be measured. Examples of elements includes an individual,
a household, a business, an animal, a tree, etc.
Definition 3. A population is a set of elements.
Definition 4. A target population is a population for which information is required.
There are two types of surveys: sample surveys and censuses. In a sample
survey, data are collected for a (typically small) fraction of a population. In
a census, data are collected for every member of a population. In Canada,
Statistics Canada is required by law to conduct a Census of Population every
five years. Users of census data come from a variety of backgrounds and
organizations. The data are used by all levels of government, the private
sector, and social and community groups. Census information may be used
in program planning and development. For example, the federal government
uses it to help calculate financial grants to provinces and territories.
1.3 Steps of a survey
There are several steps in a survey. In the following, we describe the most
important ones.
1.3.1 Defining the objectives
Defining the objectives is one of the most important tasks in a survey. It
establishes not only the information needs of the survey as a whole, but also
the operational definitions to be used, the specific topics to be considered,
and the analysis plan. This stage of the survey determines what the survey
will and will not include. A clear statement of objectives guides all subsequent
steps in the survey.
Solution Manual Page 3
, Sampling Design and Analysis 2nd Edition
For example, one needs to define the target population as thoroughly and
as clearly as possible. Also, coverage of the population needs to be defined:
what geographic area are we interested in? And what is the reference period
we are interested in - last week, last year? Finally, one needs to specify the
main uses of the data. Therefore, the data user’s input is very important
during the planning phase of a survey.
1.3.2 Selecting the sampling frame
We start with the definition of a sampling frame.
Definition 5. The sampling frame is a list that provides the means to identify and
communicate with the sample units belonging to a target population. A sampling
frame is a collection of sampling units, which are disjoint entities whose union equals
the population. The sample is selected from the sampling frame.
Solution Manual Page 4
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller ASolution. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.99. You're not tied to anything after your purchase.
