Deck 14: Sampling and Simulation

Question 1

One limitation of random sampling is that if the population is extremely large,
numbering and selecting sample elements could be costly and time consuming.

Answer 1

False

Question 2

Sampling methods often use random numbers to select samples.

Answer 2

False

Question 3

In multistage sampling, a very large population is given a questionnaire to determine
those who meet the qualifications for the study.

Answer 3

True

Question 4

Identify the type of sample obtained by numbering each element in the population and then selecting every third or fifth or tenth, etc., number from the population to be
Included in the sample.

A) stratified sample
B) cluster sample
C) systematic sample
D) biased sample

Question 5

Sampling techniques are often used

A) when survey questions are difficult to compose.
B) when the population is too small to be accurately analyzed.
C) when the entire population can be analyzed.
D) when the population is too large to be analyzed.

Question 6

An example of a good technique for getting a random sample of the population would be
to ask a question over the radio on a station that covers the region where the entire
population lives, and have the listeners phone in with an answer.

Question 7

An example of sampling could involve sampling successive
units from a production line to ensure that products continue to meet certain
standards.

Question 8

For a sample to be , every member of the population must have an
equal chance of being selected.

Question 9

Samples are said to be biased when some type of systematic error has been made in the
selection of the subjects.

Question 10

Which of the following methods will give a truly random sampling of the general population?

A) Ask a question on a radio station and ask the general public to call in and respond.
B) Mail out questionnaires to be filled out and returned.
C) Poll random people on the street.
D) Identify all them members of the population then select the desired number randomly from among them.

Question 11

Identify the type of sample obtained by selecting a preexisting or natural group and using the members in the group as the sample.

A) systematic sample
B) cluster sample
C) stratified sample
D) biased sample

Question 12

One major disadvantage of cluster sampling is that the elements in a cluster may not
have the same variation in characteristics as elements selected individually from a
population.

Question 13

A(n) is a sample obtained by dividing the population into
subgroups according to various homogeneous characteristics and then selecting
members from each subgroup for the sample.

Question 14

What term is given to a sample chosen at random from a population?

A) cluster sample
B) biased sample
C) unbiased sample
D) stratified sample

Question 15

A new product is being introduced, and a nationwide survey to determine the public's opinion of the product is to be conducted. The country is divided into six regions, then
Two states are randomly selected from each region, and then each state is divided into
Rural and urban markets. A number of these markets are selected, and randomly selected
People is these markets are surveyed about the new product. What type of sampling
Technique is being employed here?

A) double sampling
B) multistage sampling
C) systematic sampling
D) sequence sampling

Question 16

In stratified sampling, the researcher selects intact, preexisting, or natural groups to use
as samples.

Question 17

If all possible samples of a specific size have the same chance of being selected, what type of sampling is being used?

A) random sampling
B) cluster sampling
C) stratified sampling
D) systematic sampling

Question 18

If a third of a population is female, then approximately a third of the representative
sample should be female.

Question 19

A(n) is defined as all subjects (human or otherwise) that are being
studied.

Question 20

In double sampling, the researcher uses a combination of sampling methods.

Question 21

The survey question "Why do you think people break laws?" is a poor survey question because it

A) uses double negatives.
B) is too open-ended of a question.
C) is too close-ended of a question.
D) is ordered improperly.

Question 22

What type of question gives the subject a list of possible responses from which to choose?

A) unbiased
B) close-ended
C) faulty
D) open-ended

Question 23

sampling involves giving a questionnaire to a very large population, and then after the questionnaires are reviewed, a smaller population is formed and a sample
Selected from it.

A) Stratified
B) Cluster
C) Systematic
D) Double

Question 24

A statistics teacher taught Introductory Statistics to a large lecture class of 200 students. She wanted to estimate the average on the first examination by selecting every eighth
Student's test score and finding the average of these scores. What type of sampling
Technique is being employed?

A) cluster sampling
B) systematic sampling
C) stratified sampling
D) random sampling

Question 25

A pollster wants to determine which local news channel is watched most
frequently in New York City. Two city blocks in Manhattan are used as a sample.
What type of sampling technique is being used?

Question 26

A researcher wants to learn about unemployment rates across the country. She
takes an alphabetical list of the 50 states, numbers the states in order, and selects
one state at random. She surveys that state and every every tenth state after it,
cycling through the list. What type of sampling technique is the researcher
employing?

Question 27

The survey question "Since everybody likes baseball, you support the construction of the new ball field, don't you?" is a poor survey question because it is

A) a question that uses double negatives.
B) a question that is ordered improperly.
C) a biased question.
D) too open-ended of a question.

Question 28

A small-town politician is running for the district council seat. If the politician decides to poll three blocks in the district to determine his chance of winning the seat, what type
Of sampling is being used?

A) systematic sampling
B) cluster sampling
C) stratified sampling
D) multistage sampling

Question 29

A) Arizona State, Arizona State, California, Arizona State
B) California, Oregon, Oregon State, Stanford
C) Arizona, California, Oregon State, UCLA
D) Oregon, Stanford, USC, Washington State

Question 30

If a researcher chooses a name at random in the phone book and then chooses every
100th name thereafter as a sample, the researcher would be employing the method of
systematic sampling.

Question 31

"What are your three favorite flavors of ice cream?" would be an example of which type of question?

A) faulty
B) biased
C) close-ended
D) open-ended

Question 32

A survey could be biased if the identity of those being surveyed is known.

Question 33

A) Washington State
B) California
C) also Arizona
D) Arizona State

Question 34

Which of the following is not a valid advantage for studying a sample rather than an entire population?

A) Sampling enables the researcher to get more detailed information about a particular subject.
B) Sampling is more costly than using the population.
C) Sampling saves the researcher time.
D) Sampling allows the researcher to obtain information that may not be gained otherwise.

Question 35

The time and place where a survey is conducted could influence the results.

Question 36

A sample is said to be if it is a randomly chosen representation of
the population.

Question 37

Which of the following is not an advantage of cluster sampling over the other sampling techniques?

A) simplified field work
B) convenience
C) samples can be more homogeneous
D) cost reduction

Question 38

Which of the following examples of a survey question is not meant to bias the response?

A) "Do you feel that it is inappropriate for record companies to censor music?"
B) "Are you in favor of a small tax to increase social security payments to the elderly?"
C) "At what age should airline pilots be forced into retirement?"
D) "Are you in favor of raising the speed limit on interstate highways?"

Question 39

y students

Question 40

A pollster wanted to determine how much support a new library tax would have in a major metropolitan area. The metro area is divided into regions, Southeast, Southwest,
Northeast, Northwest, and Central and 100 voters in each region are surveyed. What type
Of sampling technique is being employed?

A) systematic sampling
B) stratified sampling
C) cluster sampling
D) random sampling

Question 41

e bin

A) 6
B) 7
C) 8
D) 5

Question 42

A researcher is using a random numbers table to pick between two groups labeled X and Y. X is to be chosen with probability 5/7 and Y with probability 2/7. The researcher
Assigns the digits 1, 2, 3, 4, and 5 to X, and she assigns the digits 6 and 7 to Y. The
Remaining digits are neglected. The researcher uses this section of a random number table
7 9 2 1 5 7 7 3 1 1
What are the first and second choices?

A) The first selection is X, and the second is X.
B) The first selection is Y, and the second is Y.
C) The first selection is Y, and the second is X.
D) The first selection is X, and the second is Y.

Question 43

The basic simulation technique using random numbers is referred to as the Las Vegas
method.

Question 44

olf. number
Lumn as

A) 13
B) 10
C) 12
D) 11

Question 45

A) 5
B) 3
C) 2
D) 4

Question 46

does mbers (the
Simulate one race for each team. Count the number of shots each team needs to finish.

A) The 80's/20's needed 4, while the 50's needed 8
B) The 80's/20's needed 8, while the 50's needed 5
C) The 80's/20's needed 10, while the 50's needed 10
D) The 80's/20's needed 5, while the 50's needed 7

Question 47

A) 1
B) 0
C) 2
D) 3

Question 48

number pond to

A) 2
B) 4
C) 3
D) 1

Question 49

Question 50

Simulation techniques go back to ancient times when the game of chess was invented to
simulate warfare.

Question 51

List two advantages of using simulation techniques instead of actual situations?

Question 52

The survey question "Do you feel that, if people were not allowed to park along this street, that children would not be able to play there?" is a poor survey question because it

A) is too close-ended of a question.
B) is too open-ended of a question.
C) is a biased question.
D) uses double negatives.

Question 53

Why would researchers want to use a simulation rather than study the actual situation?

A) Simulations demonstrate many additional features which the actual situation doesn't possess.
B) The actual situation may be too dangerous.
C) The actual situation may not give the desired outcomes.
D) Simulations usually employ more sophisticated computer software than the actual situations.

Question 54

Which of the following is a common simulation technique?

A) Monte Carlo method
B) multistage sampling
C) stratified sampling
D) ANOVA

Question 55

The method is a simulation technique using random numbers.

Question 56

In simulating experiments using the Monte Carlo method, one must define a
correspondence between the random numbers and the outcomes.

Question 57

A researcher is using Monte Carlo techniques to simulate wins and losses in a particular game. When the number 1, 2, or 3 appears, player A is the winner. When the number 4,
5, or 6 appears, player B is the winner. If the number 7, 8, 9, or 0 appears, the game is a
Draw. Given the following sequence of randomly generated numbers, how many games
Did player A win?
4, 5, 8, 5, 9, 3, 6, 4, 5, 1, 8, 3, 6

A) 3
B) 4
C) 6
D) 5

Question 58

A) 4
B) 2
C) 3
D) 1