BM380 Lesson 4 & 5 Exam SCORE 98 PERCENT

Lesson 4 Exam

 

Question 1

Sampling a geographical area using area sampling is a form of:

Question options:

a) 

systematic, geographic sampling.

b) 

simple random sampling.

c) 

nonprobability sampling.

d) 

cluster sampling.

Question 2

Simple random sampling is not a wise choice when you have:

Question options:

a) 

a large population.

b) 

a small population.

c) 

a sample frame in electronic format.

d) 

a large population that is not in electronic format.

Question 3

If we define our population as all households in the city of Chicago, Illinois, and we use the Chicago telephone directory from which to draw our sample units, we would likely have:

Question options:

a) 

a survey with sample frame error.

b) 

a representative survey.

c) 

a survey containing no errors.

d) 

a survey with a poorly defined master list.

Question 4

Reasons for taking a sample instead of a census include:

Question options:

a) 

cost.

b) 

inability of research firms to handle huge amounts of data generated by a census on a large population.

c) 

There is no good reason; a census is preferred over a sample.

d) 

A and B

Question 5

It is impossible to determine the probability when using nonprobability methods because:

Question options:

a) 

the selection technique is subjective.

b) 

the population size is known.

c) 

the population size is unknown.

d) 

the selection technique is objective.

Question 6

In _______ a sampling, the two-step approach is more costly than the one-step approach because more areas and time are involved.

Question options:

a) 

population

b) 

area

c) 

unit

d) 

census

Question 7

The target population for the U.S Census is:

Question options:

a) 

all households in the United States.

b) 

as many people as can be convinced to fill out the survey.

c) 

a certain percentage of the population.

d) 

an equal number of people from each region of the United States.

Question 8

A sampling method that separates the population into different subgroups and then samples one or some of these subgroups is:

Question options:

a) 

cluster sampling.

b) 

simple sampling.

c) 

stratified sampling.

d) 

systematic sampling.

Question 9

Sampling error is caused by two factors; one of them is:

Question options:

a) 

the size of the population.

b) 

the method of the sample unit definition.

c) 

the method of sample selection.

d) 

the method of population selection.

Question 10

In stratified sampling, we should always ensure that the sample drawn for each stratum is:

Question options:

a) 

equal.

b) 

proportionate to the stratum's proportion of the total population.

c) 

of the appropriate size to ensure statistical efficiency.

d) 

proportionate to the stratum's proportion of the total census.

Question 11

Which of the following may be used to overcome the problems of unlisted and new telephone numbers in a telephone directory?

Question options:

a) 

Systematic sampling

b) 

Random digit dialing

c) 

CATI systems

d) 

A different format

Question 12

Which of the following sample plans would NOT be considered a probability sample?

Question options:

a) 

Simple random sample

b) 

Systematic sample

c) 

Cluster sample

d) 

Judgment sample

Question 13

A subset of the population that should represent the entire group is known as a:

Question options:

a) 

population.

b) 

sample unit.

c) 

census.

d) 

sample.

Question 14

A master list of all the sample units in the population is known as the:

Question options:

a) 

sample list.

b) 

population master list.

c) 

master frame.

d) 

sample frame.

Question 15

One of the reasons systematic sampling is faster than simple random sampling is that the population size:

Question options:

a) 

needs to be counted and numbered.

b) 

does not need to be known.

c) 

may be estimated and each element not numbered.

d) 

cannot be known.

Question 16

Calculation of the skip interval is important in which sampling plan?

Question options:

a) 

Simple random sample

b) 

Systematic sample

c) 

"Skip" sample

d) 

Cluster sample

Question 17

The __________ used in systematic sampling is computed by dividing the population list size by the sample size.

Question options:

a) 

skip interval

b) 

representative data

c) 

containing error

d) 

master list

Question 18

Which of the following is the BEST definition of cluster sampling?

Question options:

a) 

The population is divided into subgroups and a simple random sample is taken from each subgroup.

b) 

The population is divided into subgroups; subgroups are combined into clusters, and subsets of clusters are sampled.

c) 

The population is divided into subgroups and a single/or several subgroup(s) is/are then selected from which either a census or a sample is drawn.

d) 

The population is divided into subgroups and a single/or several subgroup(s) is/are then selected from which only a sample is drawn.

Question 19

A sampling method that separates the population into different subgroups and then samples all of these subgroups is:

Question options:

a) 

stratified sampling.

b) 

area sampling.

c) 

cluster sampling.

d) 

simple sampling.

Question 20

You should obtain a listing of the population after:

Question options:

a) 

defining the relevant population.

b) 

accessing the population.

c) 

designing the sample plan.

d) 

drawing the sample.

Lesson 5 Exam

 

Question 21

__________ includes a failure on the part of a prospective respondent to take part in the survey, premature termination of the interview, or refusals to answer specific questions on the questionnaire.

Question options:

a) 

Nonresponse

b) 

Cheating

c) 

Misunderstanding

d) 

Attention loss

Question 22

You should obtain a listing of the population after:

Question options:

a) 

defining the relevant population.

b) 

accessing the population.

c) 

designing the sample plan.

d) 

drawing the sample.

Question 23

Sampling error is caused by two factors; one of them is the:

Question options:

a) 

size of the population.

b) 

method of the sample unit definition.

c) 

method of sample selection.

d) 

method of population selection.

Question 24

Which of the following is NOT one of the axioms of sample size and accuracy?

Question options:

a) 

The only perfectly accurate sample is a census.

b) 

A probability sample will always have some inaccuracy (sample error).

c) 

Increasing sample size increases the sample's representativeness.

d) 

A probability sample size can be a very tiny percentage of the population size and still be very accurate.

Question 25

Which of the following is the BEST definition of variability?

Question options:

a) 

It is the amount of dispersion in a data set containing interval or nominal data.

b) 

It is the difference between scores in the present sample and scores in a previous sample.

c) 

It is the amount of dissimilarity in ordinal data.

d) 

It is the amount of dissimilarity (or similarity) in respondents' answers to a particular question.

Question 26

A sample that has been determined by using a cost basis approach would be when the manager has discussed:

Question options:

a) 

the statistical analysis with the research project director.

b) 

the competitor's marketing results with the research project director.

c) 

the previous marketing study with the research project director.

d) 

the budget with the research project director and they have decided to spend "all they can afford" on the project.

Question 27

Which of the following is TRUE regarding probability samples?

Question options:

a) 

They are as perfect as a census and contain no errors caused by competitors.

b) 

They will always contain some inaccuracy (sample error).

c) 

They contain serious mistakes, but can be adjusted by statistical weighting procedures.

d) 

They are particularly susceptible to nonsampling errors.

Question 28

Sources of error that come from sources other than the sample selection method and sample size are referred to as:

Question options:

a) 

serious mistakes.

b) 

nonsampling errors.

c) 

errors caused by competitors.

d) 

errors caused by clients.

Question 29

__________ errors occur whenever a data collection person willfully violates the data collection requirements set forth by the researcher.

Question options:

a) 

Unintentional fieldworker

b) 

Intentional respondent

c) 

Unintentional respondent

d) 

Intentional fieldworker

Question 30

Sample accuracy refers to:

Question options:

a) 

the extent to which the sample is validated.

b) 

the extent to which the sample statistics differ from the true population values the statistics represent.

c) 

the extent to which the population statistics differ from the representativeness of the sample.

d) 

a statistical concept that can be assessed only theoretically.

Question 31

What three factors are needed to calculate sample size?

Question options:

a) 

Variability, accuracy, and confidence level

b) 

Variability, accuracy, and population size

c) 

Accuracy, confidence level, and population size

d) 

Accuracy, population size, and costs

Question 32

Which of the following is a general type of nonsampling error?

Question options:

a) 

Fieldworker error

b) 

Clerical error

c) 

Forecast error

d) 

Continuity error

Question 33

Which of the following is the theory that allows us to say that if we conducted a survey 1,000 times, and we were to plot the answers to our survey, the plot would appear as a normal curve?

Question options:

a) 

The central limit theorem

b) 

The normal curve theory

c) 

The normal limit theorem

d) 

The confidence interval theorem

Question 34

Which of the following samples have been determined by using the statistical analysis approach?

Question options:

a) 

The sample size needed to properly analyze subgroups

b) 

1,000 respondents

c) 

Between 1,000 and 1,200 respondents

d) 

200 respondents because each interview is $30

Question 35

The sample size determines:

Question options:

a) 

representativeness.

b) 

accuracy.

c) 

representativeness and accuracy.

d) 

the population statistic value.

Question 36

When all other factors are held constant, as we increase the level of accuracy, the sample size and the cost of a marketing research survey are best characterized by which of the following?

Question options:

a) 

The sample size will increase but the cost will decrease.

b) 

The sample size will decrease but the cost will increase.

c) 

The sample size and the cost of the survey will increase.

d) 

The sample size will remain the same but the cost will increase.

Question 37

__________ is defined as all errors in a survey except those attributable to the sample plan and sample size.

Question options:

a) 

Transcriptional error

b) 

Sampling risk

c) 

Continuity error

d) 

Nonsampling error

Question 38

A sample unit could be a:

Question options:

a) 

household.

b) 

consumer.

c) 

purchasing agent.

d) 

All of the above

Question 39

Ninety-five percent of the observations under the normal curve fall within __________ times the sample error.

Question options:

a) 

±1.64

b) 

±1.96

c) 

±2.58

d) 

±95

Question 40

Level of confidence in sample size formulae is normally set at:

Question options:

a) 

95 percent or 96 percent.

b) 

5 percent or 10 percent.

c) 

95 percent or 99 percent.

d) 

1 percent or 5 percent.