Chapter 12

Question 1

The entire group of individuals or instances about whom we hope to learn

Answer 1

Population

Question 2

A representative subset of a population, examined in hope of learning about a population

Answer 2

Sample

Question 3

A study that asks questions of a sample drawn from some population in the hope of learning something about the entire population

Answer 3

Sample Survey

Question 4

Any systematic failures of a sampling method to represent its population

Answer 4

Bias

Question 5

When each individual is given a fair, random chance of selection

Answer 5

Randomization

Question 6

The number of individuals in a sample

Answer 6

Sample Size

Question 7

A sample that consists of the entire population

Answer 7

Census

Question 8

A numerically valued attribute of a model for a population

Answer 8

Population Parameter

Question 9

Values calculated for sampled data

Answer 9

Statistic, Sample statistic

Question 10

A sample that accurately reflects the corresponding population parameters

Answer 10

Representative

Question 11

a sample in which each set of n elements in the population has an equal chance of selection

Answer 11

Simple Random Sample (SRS)

Question 12

A list of individuals from whom the sample is drawn

Answer 12

Sampling Frame

Question 13

The natural tendency of randomly drawn samples to differ, one from another

Answer 13

Sampling Variability

Question 14

A sampling design in which the population is divided into several sub populations, or strata, and random samples are then drawn from each stratum

Answer 14

Stratified Random Sample

Question 15

A sampling design in which entire groups, or clusters, are chosen at random

Answer 15

Cluster Sample

Question 16

Sampling schemes that combine several sampling methods

Answer 16

Multistage Sample

Question 17

A sample drawn by selecting individuals systematically from a sampling frame

Answer 17

Systematic Sample

Question 18

A small trial run of a survey to check whether questions are clear

Answer 18

Pilot

Question 19

Bias introduced to a sample when individuals can choose their own whether to participate in the sample

Answer 19

Voluntary Response Bias

Question 20

A sample of individuals who are conveniently available

Answer 20

Convenience Sample

Question 21

A sampling scheme that biases the sample in a way that gives a part of the population less representation than it has in the population

Answer 21

Under-coverage

Question 22

Bias introduces when a large fraction of those sampled fails to respond

Answer 22

Non-response Bias

Question 23

Anything in a survey design that influences responses

Answer 23

Response Bias