Chapter 4

Question 1

The entire group of individuals about which we want information from

Answer 1

Population

Question 2

The part of the population from which we actually collect information

Answer 2

Sample

Question 3

Collecting data from each member of a population is called

Answer 3

Census

Question 4

We use information from the ____ to draw conclusions about the entire ____

Answer 4

Sample, population

Question 5

The two steps in planning as sample survey is to say exactly _________ and to say exactly ________

Answer 5

What population we want to describe, what we want to measure

Question 6

The population in a sample survey can consist of

Answer 6

People, animals, or things

Question 7

Choosing individuals who are easiest to reach results in a

Answer 7

Convenience sample

Question 8

The design of a statistical study shows ____ if it’s systematically favors certain outcomes

Answer 8

Bias

Question 9

A ______ consisted of people who choose themselves by responding to a general appeal. These show ___ because people with sting opinions Re most likely to respond

Answer 9

Voluntary response sample, bias

Question 10

______, the use of chance to select a sample, is the central principle of statistical sampling

Answer 10

Random sampling

Question 11

A sample chosen by ___ rules out both favoritism by the sampler and self-selection by the respondents

Answer 11

Chance

Question 12

In statistics, the word ____ means due to chance

Answer 12

Random

Question 13

A ________ of size n consists of n individuals from the population chosen in such a way that every set of n individuals has an equal chance to be the sample actually selected

Answer 13

Simple random sample

Question 14

To select a _________ first classify the population into groups of similar individuals called ___

Answer 14

Stratified random sample, strata

Question 15

To take a _______ first division the population into smaller groups called _____ that mirror the characteristics of the population

Answer 15

Cluster sample, clusters

Question 16

The difference between strata and clusters, we want each ______ to contain similar individuals and we want each _____ to look just like the population

Answer 16

Stratum, cluster

Question 17

Most large-stage sample surveys use ________ that combine two or more sampling methods

Answer 17

Multistage samples

Question 18

The process of drawing conclusions about a population on the basis of sample data is called

Answer 18

Inference

Question 19

A ______ is a list of individuals from which we draw our sample

Answer 19

Sampling frame

Question 20

______ occurs when some groups in the population are left out of the process of choosing the sample

Answer 20

Undercoverage

Question 21

______ occurs when an individual chosen for the sample can’t be contacted or refuses to participate

Answer 21

Noresponse

Question 22

A systematic patter of incorrect responses in a sample survey leads to

Answer 22

Response bias

Question 23

The ________ is the most important influence on the answers given in a sample survey

Answer 23

Wording of questions